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2024.01.02 Sunday
The Recruitment of CJUH-JLU-China
Our PI Xin Hu and Youzhong Wan delivered the basic introduction of iGEM and the awards of 2023 CJUH-JLU-China team. Team members Saiyu Luo, Zhongyu Chen, Luohan Ge, He Sun and Ziming Zhong shared their experience of working in respective team and the standards of taking part in their groups. This helped the students to understand iGEM further.
After this promotional lecture, our PI set a series of different selection requirements to recruit different groups of students who were interested in experiments , good at biological research and passionate about synthetic biology.
2024.01.07 Sunday
The Establishment of CJUH-JLU-China
The members of our team were basically settled, including six groups:
Experiment,Wiki,Human Practice,Education,Model and Presentation.
The members of Experiment group were encouraged to go through thesis extensively in the field of reverse onco-cardiology and onco-cardiology. During the process of brainstorm,each of us come up with our own ideas and projects.
2023.01.17 Sunday
The First IGEM Team Meeting
This was the first time we held a meeting with all members in our team, members in Experiment group shared individual project ideas.
Sirui Dong introduced a project about ERK inhibition system based on the indentification of miR-21. Expecting to inhibit heart disease related tumors by inhibiting the function of specific miRNA . He alos introduced LIRA for the project for the first time.
Saiyu Luo was inspired by IISER-TVM, She introduced a medical system to deliver BC OMV and HF OMV by extracellular vesicle of Escherichia coli, which can inhibit breast cancer and Cardiac hypertrophy.
Zhongyu Chen designed a miRNA-targeted therapeutic platform and a negative feedback system for bacterial targeting and tumour cells killing. By direct killing and indirect miRNA inhibition, this can prevent and treat tumors caused by cardiovascular diseases.
Qiyu Tan introduced the Janus Plan project which was inspired by E.coli Nissle 1917 (EcN). His idea focused on the NRG-1/ErbB pathway. At the same time, he applied exogenous hNRG-1 to promote cardiomyocyte proliferation that has a tumour-promoting effect, and the treatment of tumours (e.g.Trastuzumab ) through the block of ErbB2, leads to drug-induced heart failure.
Yuehtong Ge proposed the rapid detection method based on miRNA-107.She regarded the miRNA as a biomarker with the aim of conveniently assessing the cancer risk of patients with heart disease. This idea came out from last year iGEM project.
Huixin Liang proposed a project about intelligent drug-loading micro-robot to thereby improve breast cancer screening rates in hypertension postmenopausal women , which initiates apoptosis and drug release by sensing the microenvironment through hormone and enzyme activities.
Rui Yao proposed a new method to produce IL-1β Fab' antibody through vitro expression, which can reduce the risk of cancer in patients with heart disease.
Yuxiao Qin proposed a drug based on adenovirus Sh-Sirt3 to reduce cardiac and tumour pathogenesis and enhance drug resistance susceptibility. She introduced a suicide switch to enhance the security of the drug.
2024.01.26 Friday
1st brainstorm
This meeting of Exp group started with reports about the further project conceptions.
Qiyu Tan reported the use of E.coli Nissle 1917 in previous IGEM teams, confirmed the safety and efficacy of EcN, and elucidated the therapeutic mechanism of NN in heart failure and tumour.
Sirui Dong came up with the primary thought of Heartecho based on the RNA recognition system of LIRA. He expected to build LIRA parts with the function of recognising miRNA-21 to regulate the release of ERK. This ERK can inhibit the relaese of drugs, thus achieving the treatment of reverse cardio-oncology. However, PI pointed out that miRNAs also have physiological functions without heart disease, and the sensitive OR gate design can cause side effects.
Saiyu Luo improved the vector and added the cardiac-specific promoter cTnT、tumour-specific promoter Cox2 in front of the expression parts to increase the drug safety.
Zhongyu Chen improved the design of the microenvironmental sensing module by integrating in vitro transcription into intracellular parts. Focusing on safety and targeting ability.
Yuehtong Ge added signal cascade link to the project and added osteoblastin and apelin as biomarkers.
Huixin Liang changed the details of the project and focused on the specific mechanisms of CD11b+Ly6G-Ly6Chi monocytes and the CXCL13-CXCR5 axis.
Yuxiao Qin changed the direction of the project and designed to use the overexpression of HER2/neu as a marker to initiate the expression of trastuzumab. This can achieve the dual effect of simultaneously treating breast cancer and reducing the damage to the heart caused by tumor drugs.
Rui Yao changed the the project. through the functional modification of exosomes and put into the human body.proposed to treat myocardial infarction and inhibited the migration of prostate cancer. through the functional modification of exosomes and put into the human body.
2024.01.31 Wednesday
2nd brainstorm
In the second Exp group meeting, PI Xin Hu and PI Youzhong Wan identified two directions for the next experimental design of Exp :HeartEcho and Janus Plan, and the two projects were carry on in parallel.
Janus Plan: Qiyu Tan, Saiyu Luo, Rui Yao, Yiheng Shan
HeartEcho: Sirui Dong,Zhongyu Chen, HuixinLiang, Yuetong Ge, Yuxiao Qin
2024.02.02 Sunday
Further Discussion on HeartEcho and Janus Plan (1)
HeartEcho project team:
Sirui Dong introduced the overall project design. After a week of brainstorm, the HeartEcho project team decided to change the recognition criteria, and use the dysregulation of miRNA as the initiating signal to function directly. This help them to design two AND gate [1,2].
[1] Synthetic RNA-Based Immunomodulatory Gene Circuits for Cancer Immunotherapy
[2] Synthesizing AND gate minigene circuits based on CRISPReader for identification of bladder cancer cells
The first design used BS autodegradation sites for logic circuit-like gene regulation
The second design utilises the CRISPR system: the generation of gRNA and Cas9 corresponds to the recognition of different miRNAs. When both miRNAs exists,the CRISPR system is completed and the targeted therapeutic function can be started.
Janus plan project team:
Qiyu Tan introduced the overall project design within the experimental group.They showedindividual views on gene vectors, microbial cells , drug release, etc.
2024.02.05 Wednesday
Further Discussion on HeartEcho and Janus Plan (2)
Janus plan project team:
Qiyu Tan introduced the heart failure biomarker: NT-proBNP.
HeartEcho project team:
The group investigated the potential targets of miR-130b-3p and miR-21 based on previous designs, and initially clear that miRNA influence tumour progression through heart disease. The AND gate design was also found to have the capacity to be further set as a part that specifically recognises the two target miRNAs.
2024.02.18 Tuesday
Further Discussion on HeartEcho and Janus Plan (3)
Janus plan project team:
Saiyu Luo introduced us the design of NN release system based on NT-proBNP and furin protease, which can inhibit the hydrolysis of NN at high NT-proBNP expression, so as to release NN. Qiyu Tan put forward two proposals about testing miRNAs in vivo.
Members of the team reported Salmonella which can carry out NN and the system-PVC which can deliver proteins to the intracellular precisely.
HeartEcho project team:
Zhongyu Chen designed a diagnostic model of Heartecho based on the previous AND gate, which is combined with the repressor. After discussion, the group members changed direction of the project to the diagnostic, dedicated to develope a diagnostic system for reverse onco-cardiology.
2024.02.21 Friday
Further Discussion on HeartEcho and Janus Plan (4)
The members of the experimental group had fourth group meeting online to debrief and share individual ideas about the project with each other.
2024.2.25 Tuesday
Seminar of HeartEcho and Janus plan
CJUH-JLU-China members gathered at the China-Japan Union Hospital of Jilin UniversityC for the fifth group meeting.
HeartEcho project team:
The group members clarified the project as early diagnosis for tumour risk in patients by identifying overexpression of two miRNAs and tumour markers. According to this they designed two programs: One is the AND gateway detection based on BS degradation locus and outputting the results by using trans-cleavage fluorescence of CRISPR/Cas13a, the other is the use of enzymatic cascade reaction to achieve identification of multiple markers and output using the cell-free system for output.
PI Wan and PI Hu confirmed our progress, but also pointed out that the focus should be on finding AND gate methods that can recognise two miRNAs at the same time to further simplify the design; The selection of miRNA should be further interfaced with the mod group, and the database should be used to analyse the identification of miRNA targets.
Janus plan project team:
We cleared the direction of the project: to regulate the steady release of anti-heart failure drugs in real time by long-term monitoring of heart failure markers in cancer chemotherapy patients. In order to mitigate the cardiotoxic effects due to chemotherapy.
2024.3.3 Sunday
Further Discussion on HeartEcho and Janus Plan (5)
The experiment team members and PI gathered at the China-Japan Union Hospital of Jilin University for the first meeting of the new semester.
HeartEcho project team:
The group indentified the project as the detection of two miRNAs and improved this to get three AND gate strategies for recognising miRNAs:
①Two OR gates of LIRA were directly expected to achieve the dection of two miRNAs;
②Non-chemically regulated Repressor was used to connect two AND gates;
③RNA secondary stem-loop structures(Hairpin) was used to achieve simultaneous two miRNAs recognition by AND gate strategies.
PI Wan clarified the identification of miRNA by AND gate and expected to simplify it by using two miRNAs .
For miRNA screening, we found four miRNAs, miR-21, miR-130b, miR-155, and miR-29a, according to the thesis. [1] Based on the PI's suggestions and the screening results of the model group, we continued to expand the scope to look for the intersection of heart disease and tumour high-expression miRNAs and to confirm their effective targets.
[1]CVD phenotyping in oncologic disorders: cardio-miRNAs as a potential target to improve individual outcomes in revers cardio-oncology,
Janus plan project team:
Qiyu Tan summarised the recent group work and reported the improved project, which described the mechanism of cardiotoxicity, generation and release of anthracyclines. The modified project was unanimously approved.
2024.3.8 Friday
Seminar of Janus Plan
Janus Plan project team:
Saiyu Luo used PROTAC technology to redesign the NN release system, which can regulate NN release more precisely. Yiheng Shan introduced us about the cTnT (cardiac troponin)-specific promoter, which controls the site of gene expression. Rui Yao improved the details of the detection system about heart failure biomarkers.
2024.3.10 Sunday
Further Discussion on HeartEcho and Janus Plan (6)
Heartecho project team:
We further clarified the positioning of the project:
①Problems to be addressed:Idntifying people at high risk of tumours in patients with heart disease.
②Core:The AND system of identifying two miRNAs.
According to LIRA, the team members proposed several ways to implement AND gate:
①The recognition fragment was replaced with the stitching of miR1 and miR2, and expression was initiated only if both RNAs were recognised.
③The shunt of two LIRA AND gates.
After brainstorm and considering the feasibility, stability, and off-target issues, the first design option was chosen comprehensively.
Further advancing miRNA screening, members of the experiment group reported that miR-155, miR-130b-3p, miR-21-5p, and miR-29 all inhibit tumor cell growth,which did not meet our expectations.
Based on screening results from model groups in TCGA and GEO databases and on the recommendation of our PI, we decided to retrieve miR-590-5p, which is highly expressed in heart failure, pulmonaryhypertension, and multiple tumors. The search strategy is improved by comparing different diseases.
At the same time, we prepared a proof of concept for LIRA based on the recommendations of our PI: We worked with the Model group to perform computer structure simulation using NUPACK software.
Janus Plan Project team:
As the subject of the project is clear : To reduce the cardiotoxic effects of cancer chemotherapy, the project has been renamed to “V-oncocardio”,Qiyu Tan designed the vitro detection of two microRNAs with the AND gate strategy and reported in the group meeting.
2024.3.17 Sunday
Further Discussion on HeartEcho and V-oncocardioproject (7)
Heartecho project team:
We reported progress on sequence structure: we cleared H01 and H05 sequence in the LIRA library, and successfully recurred structures about the LIRA on NUPACK and RNA Structure, which requires relatively low free energy and 55-65°C microenvironment.
PI confirmed our progress and agreed to start the proof-of-concept experimental design, while continuing to simulate the LIRA structure of the AND gate, and continue to work with the model group to screen for miRNA targets.
V-oncocardio project team:
Saiyu Luo briefly introduced the experimental workflows and reported the results of the recent literature review on BNP promoter, and put forward the idea of using the BNP promoter. Rui Yao reported the NN expression system. PI Wan thought that NN expression should be based on the BNP promoter, which pointed out the direction for our subsequent research.
The experimental workflow of BNP promoter was briefly introduced by Saiyu Luo, and a review of recent literature on BNP promoter was reported. Rui Yao reported on the NN expression system. PI Wan thought that NN expression should be based on the BNP promoter, which pointed out the direction for our subsequent research.
2024.3.23 Saturday
Seminar of V-oncocardioproject
V-oncocardio project team:
We optimised the BNP promoter based on the existing literature, and reported the design of a shorter BNP promoter and gave the shorter sequence to the group. And we extensively reviewed the literature about NN autocrine implementation and completed AAV build process .
2024.3.24 Sunday
Project Finalisition
At this group meeting, PI Hu and PI Wan hammered out this year's iGEM project ----HeartEcho. The two groups were merged.
Saiyu Luo, Sirui Dong, Huixin Liang, and Yuyun Qin completed the proof-of-concept experiment design plan for the H01/H05 sequence. Yuetong Ge clarified the paper-based cell-free as the output module of the project system.
Structural validation of two Input AND gates was also completed this week, and the structures of both NUPACK and RNA Structure validated our analysis and assumption about the sequences.
2024.3.31 Sunday
Design experiments about Proof-of-concept and outline the framework of Parts
Under the guidance of our PI, Saiyu Luo, Sirui Dong, Huixin Liang and Yuxiao Qin optimised the construction of the target plasmid and detailed experiment steps.
About Cell-free system,Yuetong Ge made experimental workflows and design verification experiment about cell-free transcription-translation system.Rui Yao and Yiheng Shan reviewed the progress on miRNA.
About Parts, Saiyu Luo and Qiyu Tan summarized the plasmid construction and Parts Description, and they drafted Parts Overview.
2024.4.6 Saturday
Design LIRA structure,order plasmids and investigate miRNA
We cooperated with Model Group and reported. Zhongyu Chen designed the single-arm LIRA under differrnt Stem/Loop Ratio, and compared their stability according to the free energy.
About the proof-of concept , Saiyu Luo and Yuxiao Qin summarized them all and orderd the plasmids; Huixin Laing and Sirui Dong improved the detailed experiments and checked the list of reagents to be ordered; Yuetong Ge completed the framework of experimental design related to the cell-free system.
Rui Yao and Yueting Guo conducted extensive literature research about miR-223-3p and miR-18a-5p, which express highly in myocardial infarction and atherosclerosis, and can significantly contribute to gastric cancer.
In terms of paperwork, Qiyu Tan completed the preliminary framework of the parts page, and Dong Sirui completed the draft of the Chinese version of the February and March notebook for the Heartecho project.
2024.4.14 Sunday
Clarify the application and summarize the cell model
Zhongyu Chen,Sirui Dong and Qiyu Tan improved the general introduction about the project and clarified the background, solution and application scenarios of the project.
About the experiment design, Saiyu Luo and Yuetong Guo completed the description and notebook about the color reaction of digestion based on the Cell-free system.Huixin Liang drafted the protocol about the proof-of-concept.
About the background investigation, Yueting Guo reviewed the literature related to the cell model of atherosclerosis; Rui Yao organized detailed information about the regulation of miR-223-3p in atherosclerosis genes.
Our PI pointed out the lack of project basis, and suggested that we should read the literature extensively to clarify the reason why we chose specific heart disease and cancer as the target of our project from an epidemiological perspective.
2024.4.21 Sunday
Discussion in-depth about reverse onco-oncology cardiology
We explain the relationship between heart disease and cancer from the epidemiological perspective. We respectively looked up the realtionship between atherosclerosis, myocardial infarction, heart failure , hypertensive and cancer.
2024.4.27 Saturday
Enquiry color reaction and laboratory safety training
Zhongyu Chen summarised the link between atherosclerosis and lung cancer; Yurtong Ge enquiried the reagents with excellent colour rendering in the liquid system according to the suggestions of our PI.
All members of experiment group traind together on laboratory safety.
2024.5.12 Sunday
Retrace the project background and summarize the Experimental models
We retraced the background of the project: Sirui Dong, Qiyu Tan and Saiyu Luo worked together to sort out the development of reverse oncology cardiology and completed the draft of the description. In the background research of cardiology, Huixin Liang and RuiYao reviewed the experimental models of hypertension and atherosclerosis respectively, while Yutong Ge and Yueting Guo reviewed the background knowledge of hypertension.
About the screening of miRNA, Yuxiao Qin clarified the role of microRNA208 in CAD, AMI, ACS and the induction mechanisms of pancreatic and hepatocellular carcinoma.
About the paperwork, Qiyu Tan completed the manuscript about the proof-of-concept; Saiyu Luo, Yueting Guo and Yuetong Ge accomplished the preliminary graft of safety form.
Experiment
This month, we began to conduct experiments. For ease of recording, we numbered plasmids 1-35 according to the following table.
After we received these plasmids and bacteria , we made an overnight liquid culture and the next day we performed a miniprep or maxiprep to isolate and quantify the plasmid DNA
For ease of marking,We use “-BL21”as the plasmids' suffix to indicate corresponding bacteria, we use“→BL21/Trans1-T1”as the plasmids' suffix to indicate transformation and the bacteria transformed the corresponding plasmids
For example: ①-BL21 : BL21 containing plasmid① ;②→BL21:Transform plasmid② to BL21 or BL21 that transformed ② into.
We first proved the concept on plasmids①②⑨⑩ to initially validate the possibility of LIRA implementation.
2024.05.13 Monday
Outline:
1. Preparation of LB liquid medium and Ampicillin (Amp)/ Kanamycin (Kan) solid medium [Saiyu Luo][Sirui Dong]
2. Preparation of miniprep plasmids ①②⑨⑩ [Saiyu Luo][Sirui Dong]
①H01 with lac operator-pET-15b ( pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input05)
Detailed experiments
I. LB liquid medium configuration [Saiyu Luo][Sirui Dong]
LB liquid medium configuration followed the protocol
1. Bring volume to 2L total by topping up with RO water.
2. Mix until powder is fully dissolved
3. Aliquot the medium into conical flasks, 200mL each.
4. Autoclave on liquid cycle for 20 min ,121℃.
5. Store at room temperature for usage.
II. Solid medium configuration [Saiyu Luo][Sirui Dong]
Solid medium configuration followed the protocol
1. Wash two small conical flasks.
2. Weigh 1.5g agarose, and put it into a small conical flasks (250mL). Repeat once.
3. Take the above prepared LB medium and dispense about 100mL to each of the conical flasks containing agarose, seal and shake well;
4. After autoclaving, leave to room temperature.
5. Take 6 petri dishes, labelled "Kan+"; take another 6 petri dishes, labelled "Amp+".
6. Transfer the conical flask to the ultra-clean table, set it at room temperature, and add Kan after cooling . the antibiotic concentration of the original tube is 100mg/mL, and add it to the medium according to the volumetric ratio of 100μL/100mL, and the final concentration of antibiotics within the medium is 100μg/mL
7. Pouring plates. A total of 12 plates were made, which were half-covered with petri dish lids and were set until the medium solidified. Then sealed with a sealing film.
III. Culture overnight [Saiyu Luo][Sirui Dong]
Remove the bacteria to the 15mL centrifuge tubes containing LB-Amp/Kan, and left them to shake overnight in the incubator at 37˚C .
We also spread Glycerol Stock DH5α (Oringinal tube)with the ordered plasmid①②⑨⑩ on the plate for futher culture.
Handwriting
2024.05.14 Tuesday
Outline:
1. Miniprep①②⑨⑩ (TlANprep Mini Plasmid Kit) [Qiyu Tan] [Yuetong Ge]
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP) (DH5α)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (DH5α)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01) (DH5α)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) (DH5α)
2. Stored bacteria [Qiyu Tan] [Yuetong Ge]
3. Digestion and Agarose Gel Electrophoresis Verification [Qiyu Tan] [Yuetong Ge]
We validated the digestion of plasmid①②⑨⑩(Miniperp)
Detailed experiments
I. Stored bacteria [Qiyu Tan] [Yuetong Ge]
II. Miniprep [Qiyu Tan] [Yuetong Ge]
Miniprep Protocol followed: TlANprep Mini Plasmid Kit protocol
Before miniprep ,we firstly used an inoculating wire loop to pick up some bacteria colonies from a culture plate and inoculate in an 15mL centrifuge tube containing the LB-Amp/Kan.
1. Label 1.5mL Eppendorf tubes.
2. Fill the tubes with the bacterial culture and centrifuge at 12000 rpm for 1 minute, then discard the supernatant.
3. Repeat step 2 multiple times until all 5 mL of the bacterial culture is centrifuged.
4. Add 150µL P1 solution, vortex until the solution turns pink.
5. Add 150µL P2 solution, gently invert 6-8 times.
6. Add 350µL P5 solution, immediately invert 12-20 times to mix until a white flocculent precipitate forms, then centrifuge at 12000 rpm for 1 minute.
7. Prepare an adsorption column by inserting it into a collection tube.
8. Using a yellow pipette tip nested in a white pipette tip, transfer the supernatant to the adsorption column with a 200 µL pipette.
9. Centrifuge at 12000 rpm for 1 minute
10. Discard the supernatant and retain the adsorption column.
11. Add 300 µL PWT solution, centrifuge at 12000 rpm for 1 minute.
12. Discard the waste liquid from the collection tube and replace the tube.
13. Centrifuge the empty tube at 12000 rpm for 1 minute.
14. Insert the adsorption column into a new Eppendorf tube, add 50 µL ddH2O, centrifuge at 12000 rpm for 1 minute, repeat this step twice.
15. Measure the concentration.(below)
III. Digestion verification [Qiyu Tan] [Yuetong Ge]
● We used enzyme EcoRI - HF and XbaI with rCutSmartBuffer.
● We digest them at 37℃ for 1 hour.
● The following volumes were added in the mixture:
IV. Agarose Gel Electrophoresis
Agarose Gel Electrophoresis followed the protocol
1. Measure 1g agarose.
2. Mix agarose powder with 120mL 1xTAE in a microwavable flask
3. Microwave for 1-3 min until the aga rose is completely dissolved
4. Let agarose solution cool down to about 50 °C.
5. Add Gelstain , usually about 20μL per 150 mL gel
6. Pour slowly to avoid bubbles which will disrupt the gel. Any bubbles can be pushed away from the well comb or towards the sides/edges of the gel with a pipette tip.
7. Place newly poured gel at room temperature for 40 mins, until it has completely solidified.
Note:
● Digested plasmid samples were loaded into the gel as the table below.
● The concentration of the gel is 1%.
● 2μL of 6X loading buffer were added to all samples.
unit: μL
● Run the gel at 135V for about 40 minutes and then imaged it with UV light.
Analysis:
There were no visible bands,We inferrd that the loading amount is too low, so we expected to increase the loading amount and repeat the experiment again.
Handwriting
2024.05.15 Wednesday
Outline:
The Digestion results of miniprep ①②⑨⑩ were not satisfactory, We inferred that it is because of the low quantity of miniprep. We planned to perform maxiprep to verify the plasmids.
1. Maxiprep ①②⑨⑩ [Saiyu Luo] [Qiyu Tan][Rui Yao]
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP) (DH5α)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (DH5α)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01) (DH5α)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) (DH5α)
Detailed experiments
I. Stored bacteria [Saiyu Luo] [Qiyu Tan][Rui Yao]
II. Maxiprep ①②⑨⑩ [Saiyu Luo] [Qiyu Tan][Rui Yao]
Protocol followed: EndoFree maxi Plasmid Kit protocol
1. Harvest 200 mL overnight cultured bacterial cells by centrifuging at 8,000 rpm for 10 min at room temperature (22°C), and then remove all traces of supernatant.
2. Try to remove all traces of supernatant, use clean paper tissue to absorb the fluids inside the tube wall.
3. Resuspend pelleted bacterial cells in 8 mL Buffer P1. The bacteria should be resuspended completely by vortex or pipetting up and down until no cell clumps remain.
4. Add 8 mL Buffer P2 and mix thoroughly by inverting the tube 7 times, then incubate at room temperature for 5 min.
5. Add 8 mL Buffer P4, and mix immediately and thoroughly by gently inverting 6-8 times, until the whole solution become cloudy. Incubate at room temperature for 10 min. Centrifuge for 5-10 min at 8,000 rpm, the white material should be in the bottom of the centrifuge tube. Transfer the supernatant into a Filtration CS1. Gently insert the plunger into the Filtration CS1 and filter the cell lysate into a new 50 mL tube.
6. Column equilibration: place a Spin Column CP6 into a 50 mL Collection Tube and add 2.5 mL Buffer BL to Spin Column CP6. Centrifuge for 2 min at 8,000 rpm. Discard the flow- through, and place Spin Column CP6 into the same Collection Tube
7. Add 0.3×volume isopropanol to the cleared lysate, mix completely by reverting upside and down and then transfer all solution to the Spin Column CP6.
8. Centrifuge for 2 min at 8,000 rpm. Discard the flow-through and place the Spin Column CP6 back into the same Collection Tube.
9. Add 10 mL Buffer PW to the Spin Column CP6 and centrifuge at 8,000 rpm for 2 min. Discard the flow-through and place the Spin Column CP6 back into the same Collection Tube.
10. Repeat step 9.
11. Add 3 mL 100% ethanol to the Spin Column CP6 (put the CP6 in a Collection Tube). Centrifuge for 2 min at 8,000 rpm, discard the flow-through.
12. Put Spin Column CP6 back to Collection Tube, centrifuge at 8,000 rpm for 5 min for removing residual ethanol.
13. To elute DNA, place the Spin Column CP6 in a clean 50 mL Collection Tube and add 1-2 mL Buffer TB to the center of the membrane and incubate 5 min at room temperature, centrifuge at 8,000 rpm for 2 min. Transfer the eluate from 50 mL centrifuge tube to a clean 1.5 mL centrifuge tube and put at -20 °C for storage.
14. Measure the concentration.(below)
Handwriting
2024.05.17 Friday
Outline:
I. Single Digestion and Agarose gel electrophoresis
[Saiyu Luo] [Huixin Liang] [Yuxiao Qin]
We digest Plasmid①②⑨⑩ after maxiprep in order to verify correctness of the maxiprep.
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP) (DH5α)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (DH5α)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01) (DH5α)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) (DH5α)
II. Sequencing maxiprep Plasmid ①②
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP)(Trans1-T1)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (Trans1-T1)
Detailed experiments
I. Single Digestion [Saiyu Luo] [Huixin Liang] [Yuxiao Qin]
●We used enzyme EcoRI - HF and XbaI with rCutSmartBuffer.
●We digest them at 37℃ for 1 hour.
● The following volumes were added in the mixture:
II. Agarose gel electrophoresis[Saiyu Luo] [Huixin Liang] [Yuxiao Qin]
Agarose Gel Electrophoresis followed the protocol
● Digested plasmid samples were loaded into the gel as the table below.
● The concentration of the gel is 1%.
● 2μL of 6X loading buffer were added to all samples.
● Run the gel at 135V for about 35 minutes and then imaged it with UV light.
Analysis of results
Successful in maxiprep plasmid①② , but concentrations are lo
Bands of ⑨⑩Input 01/05 samples were unsuccessful
III. Sequencing results are correct
①H01-1
①H01-2
②H05
Handwriting
2024.05.18 Saturday
Outline:
Single/Double Digestion and agarose gel electrophoresis: ①②⑨⑩ maxiprep
[Saiyu Luo] [Huixin Liang] [Sirui Dong]
Because of the low loading amount of ①② single enzyme bands and the failure of the ⑨⑩ experiments, we increased the volume of samples, performed duplicate experiments with single digestion, and verified them by doing double digestion.
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
Detailed experiments
I. Single Digestion one more time [Saiyu Luo] [Huixin Liang] [Sirui Dong]
Because of the low concentration, we increased plasmid quality from 270ng to 2μg
We used enzyme EcoRI - HF and XbaI with rCutSmartBuffer.
The concentration of the gel is 1%.
We digest them at 37℃ for 1 hour.
The following volumes were added in the mixture(2μg)
II. Double Digestion [Saiyu Luo] [Huixin Liang] [Sirui Dong]
We used enzyme EcoRI & Hpa I and NheI & Hpa I with rCutSmartBuffer.
The concentration of the gel is 1%.
We digest them at 37℃ for 1hour.
The following volumes were added in the mixture:
Ⅲ. Agarose gel electrophoresis [Saiyu Luo] [Huixin Liang] [Sirui Dong]
Agarose Gel Electrophoresis followed the protocol
(1)Single Digestion
Digested plasmid samples were loaded into the gel as the table below.
4μL of 6X loading buffer were added to all samples.
● Run the gel at 135V for about 40 minutes and then imaged it with UV light.
(2)Double Digestion
Digested plasmid samples were loaded into the gel as the table below.
4μL of 6X loading buffer were added to all samples.
Run the gel at 135V for about 40 minutes and then imaged it with UV light.
Analysis of results
Single Digestion verified that plasmid extraction of ①②⑨⑩H01&H05&Input01&Input05 is successful. However, the concentration was low.
Double Digestion verified that ①②⑨⑩H01&H05&Input01&Input05 were successful in maxiprep but at low concentration.
Handwriting
2024.5.19 Sunday
Literature seminar about miRNA
For the miR-142-3p、miR-146b-5p、miR-330-5p、miR-210a-3p,which express highly at the intersection of heart failure, myocardial infarction and cancer, we had a detailed and extensive investigation.
MiR-210a-3p expresses highly in PH, HF, CAD and widespread promote the progress on cancer.
MiR-142-3p is co-expressed at high levels in heart failure and myocardial infarction. It is recognised to promote renal cell carcinoma and gastric cancer, despite being investigated as a broadly tumor suppressor.
miR-146b-5p、miR-330-5p are excluded because of the unsatisfactory effects in the reverse onco-cardiology.
2024.05.20 Monday
Outline:
1. Transformation: Plasmids①②⑨⑩→ Trans1-T1/BL21
[Saiyu Luo] [Qiyu Tan] [Huixin Liang]
After verifying the success of the maxiprep of plasmid ①②⑨⑩, we decided to examine the transformation , which is in line with the process of our system expression.
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP)(Amp)→Trans1-T1& BL21
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (Amp)→Trans1-T1&BL21
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01) →Trans1-T1& BL21
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) →Trans1-T1& BL21
Detailed experiments
I. Pour plates [Saiyu Luo] [Qiyu Tan] [Huixin Liang]
1. Wash the conical bottle, add 1.5g AGAR and 100mL LB medium (add LB medium on a super clean table, seal after operation)
2. Heat 30s, repeat several times, and shake between each heat, until the AGAR is completely dissolved, set until it is not hot
3. Add 100μL Amp to 2 bottles, shake well, pour a total of 11 plates.
4. Add 100μL Kan to 2 bottles, shake well, pour a total of 11 plates.
II. Transformation(8 groups)[Zhongyu Chen][Huixin Liang] [Rui Yao][Yueting Guo]
Transformation followed the protocol Bacterial Transformation
1.Take competent cells out of -80°C and thaw on ice
2.Remove agar plates from storage at 4°C and let warm up to room temperature and then incubate in 37°C incubator.
3.Mix 2μL of plasmids (500ng) into 50μL of competent cells in a microcentrifuge tube. Gently mix them
4.Incubate the competent cell/plasmid mixture on ice for 20 mins.
5.Heat shock each transformation tube by placing the bottom 1/2 of the tube into a 42°C water bath for 90s.
6.Put the tubes back on ice for 2 min.
7.Add 500μl SOC media (without antibiotic) to the bacteria and grow in 37°C shaking incubator for 1h.
8.Plate transformation (200 μL) onto a LB agar plate containing the appropriate antibiotic.
9.Incubate plates at 37°C overnigh
Analysis of results
III. Pick colonies from the transformed plates and shake
①H01 with lac operator-pET-15b(2个) Trans1-T1;BL21
②H05 with lac operator-pET-15b(2个) Trans1-T1
⑨Input01 with lac operator-pCOLADuet-1(1个) BL21
⑩Input05 with lac operator-pCOLADuet-1(2个) Trans1-T1;BL21
Dosage of systemic antibiotics:
Amp:100mg/mL 100mL LB+100μL Amp
Kan:100mg/mL 100mL LB+100μL Kan
Handwriting
2024.05.21 Tuesday
Outline:
1. Transformation: ②⑨⑩→BL21/ Trans1-T1
[Zhongyu Chen][Huixin Liang] [Rui Yao][Yueting Guo]
We repeated transformation beaause of the last failure of transformation that did not grow properly.
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) →Trans1-T1
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01) →Trans1-T1
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) →Trans1-T1& BL21
Detailed experiments
I. Stored Bacteria and culture to shake
·Add 800μL bacterial solution to 200μL glycerin and frozen at -80℃
We removed them in culture tubes containing LB-Amp/LB-Kan,left them to shake in the incubator at 37˚C overnight.
Add 1mL bacterial solution to 200mL Amp/kan medium, shake at 220rpm at 37℃ overnight
II. Transformation ②⑨⑩→BL21/ Trans1-T1
Transformation followed the protocol Bacterial Transformation
Strangely, ②⑨⑩→Trans1-T1/BL21(DE3) grew on the plate, but did not grow at all in liquid culture.
Although all colonies grew after the last transformation, there were individual colonies that grew abnormally after the expanded culture, so the experiment was repeated for verification as follows.
Note: We used LB-Amp/Kan plates.
Analysis of results
Handwriting
2024.05.22 Wednesday
Outline:
1. Maxiprep for plasmid ①②⑨⑩
[Saiyu Luo][Zhongyu Chen][Qiyu Tan][Huixin Liang][Sirui Dong]
After growth of the transformed colonies, we performed plasmid maxiprep of bacteria transformed to BL21 and Trans1-T1 to validate the success of the transformation.
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
Detailed experiments
I. Maxiprep ①②⑨⑩
[Saiyu Luo][Zhongyu Chen][Qiyu Tan][Huixin Liang][Sirui Dong]
Protocol followed: TlANprep Mini Plasmid Kit protocol
2024.05.23 Thursday
Outline:
Maxiprep one more time
[Huixin Liang][Rui Yao][Yuetong Ge]
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (Amp) (DH5α)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (Amp) (→BL21(DE3)) (1)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (Amp) (→BL21(DE3)) (1)
⑩Input05 with lac operator-pCOLADuet-1 (Kan) (DH5α)
Detailed experiments
I. Maxiprep [Huixin Liang][Rui Yao][Yuetong Ge]
Protocol followed: TlANprep maxi Plasmid Kit protocol
Measure the concentration.
2024.05.24 Friday
Outline:
1. Maxiprep:⑨In01 Lac+ K+ Trans1-T1 maxiprep [Saiyu Luo]
After completing the maxiprep , we performed Digestion validation
2. Single Digestion and Agarose gel electrophoresis: [Saiyu Luo][Rui Yao] [Yueting Guo]
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP)(BL21、Trans1-T1)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP) (BL21、Trans1-T1)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)(BL21、Trans1-T1)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) (BL21、Trans1-T1)
3. Transformation :③④⑨⑩→Trans1-T1 [Saiyu Luo]
At the same time, the plasmids③④⑨⑩we ordered arrived, and we transformed them followed by the plasmids①②⑨⑩
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
Detailed experiments
I. Maxiprep ⑨ [Saiyu Luo][Rui Yao] [Yueting Guo]
Protocol followed: TlANprep maxi Plasmid Kit protocol
Measure the concentration.
II. Single Digestion [Saiyu Luo]
●We used enzyme EcoRI - HF and XbaI with rCutSmartBuffer.
●We digest them at 37℃ for 30minutes.
● The following volumes were added in the mixture(2μg):
Agarose Gel Electrophoresis followed the protocol
Digested plasmid samples were loaded into the gel as the table below.
The concentration of the gel is 1%.
4μL of 6X loading buffer were added to all samples.
unit: μL
Analysis of results
Single Digestion verified that H01&H05&Input05 plasmid extraction successfully, except Input05 which had lower concentration and Input05 had heterozygous bands
III. Transformation :③④⑨⑩→Trans1-T1 [Saiyu Luo]
Transformation followed the protocol Bacterial Transformation
Analysis of results
Handwriting
2024.05.25 Saturday
Outline:
1. Single/double Digestion and Agarose Gel Electrophoresis verification :
⑨Input01→Trans1-T1
[Saiyu Luo][Sirui Dong][Huixin Liang][Yuxiao Qin]
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)(Trans1-T1)
2. Preparation of maxiprep
[Saiyu Luo][Sirui Dong][Huixin Liang][Yuxiao Qin]
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
Detailed experiments
I. Single Digestion :Input01 Trans1-T1 [Saiyu Luo][Sirui Dong][Huixin Liang][Yuxiao Qin]
●We used enzyme EcoRI - HF and XbaI with rCutSmart Buffer.
●We digest them at 37℃ for 30min.
● The following volumes were added in the mixture:
II. Double Digestion
[Saiyu Luo][Sirui Dong][Huixin Liang][Yuxiao Qin]
●We used enzyme EcoRI & Hpa I and NheI & Hpa Iwith rCutSmartBuffer.
●We digest them at 37℃ for 30minutes.
● The following volumes were added in the mixture:
Ⅲ. Agarose gel electrophoresis [Saiyu Luo] [Huixin Liang] [Sirui Dong]
Agarose Gel Electrophoresis followed the protocol
(1)Single Digestion
Digested plasmid samples were loaded into the gel as the table below.
The concentration of the gel is 1%.
4μL of 6X loading buffer were added to all samples.
unit: μL
Run the gel at 135V for about 40 minutes and then imaged it with UV light.
(2)Double Digestion
Digested plasmid samples were loaded into the gel as the table below.
The concentration of the gel is 1%.
4μL of 6X loading buffer were added to all samples.
unit: μL
Run the gel at 135V for about 40 minutes and then imaged it with UV light.
Analysis of results
Single Digestion verified that plasmid extraction of ①②⑨⑩ H01&H05 & Input01(BL21) &Input05(BL21) is successful. However, the concentration was low
Double Digestion verified the success of ①H01&②H05 (Trans1-T1) in maxiprep.
III. Pick colonies from the transformed plates and shake
[Saiyu Luo][Sirui Dong][Huixin Liang][Yuxiao Qin]
We did this to prepare for the maxiprep tomorrow
Handwriting
2024.05.26 Sunday
Project learning, confirm miRNA and improve cell-free system
Zhongyu Chen reported on the LIRA OR gate of UGM-Indonesia team for detecting biomarkers in colon cancer, identifying our key issues to be addressed.
Yuetong Ge improved the functional verification of lacZα about the cell-free system.
Saiyu Luo searched for potential miR-210-3p, miR-142-3p targets. 54,128 target genes were predicted using mirDIP, miRWalk, miRDB and analyzed using the TCGA database
Yuxiao Qin and Yuetong Ge clarified that miR-455-3p/5p is highly expressed in myocardial fibrosis, cardiac hypertrophy and promotes colon cancer, breast cancer, and melanoma.
QiYu Tan, Huixin Liang, Rui Yao, SiRui Dong, and YueTing Guo reviewed the literature related to miR-450b-5p, miR-199a-5p, miR-199b-5p, and miR-576-5p in cardiovascular diseases and cancers respectively, and excluded them after discussion.
After a month collaborative effort between the experiment group and Model group, we finally confirmed miR-210-3p and miR-142-3p as our biomarkers for diagnosis under the guidance of our PI.
2024.05.27 Monday
Outline:
1. Maxiprep & Concentration measurement: ③④
[Saiyu Luo][Huixin Liang][Rui Yao][Yueting Guo]
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)(Trans1-T1)(1)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)(Trans1-T1)(2)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)(Trans1-T1)(3)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)(Trans1-T1)(1)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)(Trans1-T1)(2)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)(Trans1-T1)(3)
Detailed experiments
I. Stored bacteria [Saiyu Luo][Huixin Liang][Rui Yao][Yueting Guo]
II. Centrifuge bacterial solution [Saiyu Luo][Huixin Liang][Rui Yao][Yueting Guo]
Pour the bacterial solution into a 50mL centrifuge tube,Using centrifuge, 5000rpm, 10min, multiple times. The plasmids were later stored in the -80℃ fridge
III. Maxiprep [Saiyu Luo][Huixin Liang][Rui Yao][Yueting Guo]
Protocol followed: TlANprep maxi Plasmid Kit protocol
·Concentration measurement
Measure twice and take the average
2024.05.28 Tuesday
Outline:
1. Single/Double Digestion and Agarose Gel Electrophoresis
[Qiyu Tan] [Yueting Guo][Huixin Liang][Rui Yao]
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01) (Kan)(DH5α) -5.15(1)(2)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)(Kan) (DH5α) -5.15
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)(Kan) (BL21) -5.22
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)(Kan)(Trans1-T1) -5.22
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) (Kan) (BL21) -5.22
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)(Kan)(Trans1-T1)-5.24
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) (Kan) (DH5α) -5.24
Detailed experiments
I. Single Digestion
[Qiyu Tan] [Yueting Guo][Huixin Liang][Rui Yao]
●We used enzyme XbaI with rCutSmartBuffer.
●We digest them at 37℃ for 30 minutes.
● The following volumes were added in the mixture:
II. Double Digestion
[Qiyu Tan] [Yueting Guo][Huixin Liang][Rui Yao]
We used enzyme NheI & Hpa I with rCutSmartBuffer.
We digest them at 37℃ for 30 minutes.
The following volumes were added in the mixture:
III. Agarose Gel Electrophoresis
[Qiyu Tan] [Yueting Guo][Huixin Liang][Rui Yao]
Follow Protocol :Agarose Gel Electrophoresis
● Digested plasmid samples were loaded into the gel as the table below.
● The concentration of the gel is 1%.
● 2μL of loading buffer were added to all samples.
unit: μL
● Run the gel at 135V for about 45 minutes and then imaged it with UV light.
(2)Double Digestion
● Digested plasmid samples were loaded into the gel as the table below.
● The concentration of the gel is 1%. /div>
● 2μL of loading buffer were added to all samples.
unit: μL
● Run the gel at 135V for about 45 minutes and then imaged it with UV light.
Analysis of results
Bands are basically correct,but some bands of ⑩In05 Lac+ K+ Trans1-T1 are too bright bands, there may be heterozygous bands, re-examination of the extraction and Digestion.
The bands of the double digestion is basically correct
Seen from the shallow bands, the quality of the plasmid extraction concentration is poor, and further expirements are needed.
Handwriting
2024.05.29 Wednesday
Outline:
1. Single colonies picking [Saiyu Luo][Zhongyu Chen][Qiyu Tan]
①H01 with lac operator-pET-15b (pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b (pET-15b-lacO-H05-linker-EGFP)
Detailed experiments
I. Single colonies picking [Saiyu Luo][Zhongyu Chen][Qiyu Tan]
We pick single colonies from the plates that spreaded the bacteria solution from oringinal tubes on
2024.05.30 Thursday
Outline:
1. Maxiprep ⑨⑩
[Yueting Guo][Huixin Liang][Yuetong Ge]
Based on the low signal of the sequencing, the maxiprep Plasmid was performed again
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)DH5α(1)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)DH5α(2)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)DH5α(1)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) DH5α(2)
Detailed experiments
I. Maxiprep [Yueting Guo][Huixin Liang][Yuetong Ge]
Protocol followed: TlANprep maxi Plasmid Kit protocol
·Concentration measurement
Handwriting
2024.05.31 Friday
Outline:
1. Single/Double Digestion and Agarose gel electrophoresis [Qiyu Tan][Yuetong Ge]
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01) 5.31
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05) 5.31
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP) 5.27
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP) 5.27
Detailed experiments
1.Single/Double Digestion [Qiyu Tan][Yuetong Ge]
●We used enzyme EcoRI - HF and XbaI with rCutSmartBuffer.
●We digest them at 37℃ for 1 hour.
● The following volumes were added in the mixture:
II.Double Digestion [Qiyu Tan][Yuetong Ge]
●We used enzyme EcoRI & Hpa I and NheI & Hpa I with rCutSmartBuffer.
●We digest them at 37℃ for 30 minutes.
● The following volumes were added in the mixture:
Ⅲ. Agarose gel electrophoresis [Qiyu Tan][Yuetong Ge]
Agarose Gel Electrophoresis followed the protocol
(1)Single Digestion
● Digested plasmid samples were loaded into the gel as the table below.
● The concentration of the gel is 1%.
● 4μL of loading buffer were added to all samples.
unit: μL
● Run the gel at 135V for about 40 minutes and then imaged it with UV light.
(2)Double Digestion
● Digested plasmid samples were loaded into the gel as the table below.
● The concentration of the gel is 1%.
● 4μL of loading buffer were added to all samples.
● Run the gel at 135V for about 40 minutes and then imaged it with UV light.
Analysis:
③④H01/H05 bands are basically correct in size.
⑨⑩In01/05 bands are not clear, the quality of plasmid is problematic, need to explore.
③④In01/In05;⑨⑩ H01/H05 bands are almost correct in size.
Handwriting
2024.06.03 Monday
Outline:
1. Transformation : Plasmids⑤⑥→BL21 [Huixin Liang] [Rui Yao][Yuetong Ge]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
II.Sequencing of correctly digested plasmids ③④⑨⑩
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑨Input 01 with lac operator-pCOLADuet-1 (pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
Detailed experiments
I. Transformation.
[Huixin Liang] [Rui Yao][Yuetong Ge]
Transformation followed the protocol Bacterial Transformation
Note:
Mark:⑤In01 Lac- K+ DH5α - 475ng/μL;⑥In05 Lac- K+ DH5α -650ng/μL
Plates :(Antibiotic:Amp/Kan)Mark:Input01/05with lac operator(6.3) (5.29)
II. Sequencing of correctly digested plasmids ③④⑨⑩
[Huixin Liang] [Rui Yao][Yuetong Ge]
③H01 without lac operator-pCOLADuet-1(Trans1-T1) 5.27
④H01 without lac operator-pCOLADuet-1(Trans1-T1) 5.27
⑨Input01 with lac operator pCOLA
⑩Input05 with lac operator pCOLA
Handwriting
2024.06.04 Tuesday
Outline:
1. ⑤⑥ of the Transformation coated plates were picked and expanded for culture.
[Yueting Guo][Qiyu Tan][Sirui Dong][Yuxiao Qin]
2. Sequencing the correct⑤⑥(5.15) before further transformation (BL21 competent cells). [Yueting Guo][Qiyu Tan][Sirui Dong][Yuxiao Qin]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
Detailed experiments
I. Transformation. Large Concentration Conversion
14:00-17:00;[Yueting Guo][Qiyu Tan][Sirui Dong][Yuxiao Qin]
Due to the unsatisfactory results of the previous transformation, we increased the concentration of transformed plasmid.
Transformation followed the protocol Bacterial Transformation
Note: The concentration of the plasmids was 2μL(1000ng)
Mark: Input01/05 pCOLA Kan+ Concentration:2μL ≈ 1000ng
Plasmid
Process
Mark
2024.06.05 Wednesday
Outline:
1.Centrifugation of ⑤⑥ bacterial fluids(5.29) [Huixin Liang]
2.Sequencing correct ⑤⑥ transformed coated plate picks(5.15), 15 mL tubes to be determined are both coated plate or evening remote bacteria. [Huixin Liang]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
Detailed experiments
I. Centrifuge bacterial solution
Note: Input01/05 with lac operator(5.29transformation)no signal
Pour the bacterial solution into a 50mL centrifuge tube,Using centrifuge, 5000rpm, 10min.
The plasmids were later stored in the -80℃ fridge
Centrifuge bacterial solution
Storage location
1. Sequencing correct ⑤⑥ transformed coated plate picks(5.15)
The sequencing results are unsatisfactory.
2024.06.06 Thursday
Outline:
Maxiprep:Vigorous plasmid maxiprep kit
In order to further improve the efficiency of the maxiprep,we used Vigorous plasmid maxiprep kit.
[Yueting Guo][Qiyu Tan][Sirui Dong][Yuxiao Qin]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01) 5.15
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05) 5.15
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01) 5.15
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01) 5.15
Detailed experiments
I. Centrifuge bacterial solution
Pour the bacterial solution into a 50mL centrifuge tube,Using centrifuge, 5000rpm, 10min, multiple times. The plasmids were later stored in the -80℃ fridge
II. Maxiprep⑤⑥
Protocol followed: Vigorous plasmid maxprep kit protocol
(1) Plasmid extraction
1. Add 5 mL Buffer l to the aforesaid bacterial centrifuge tubes, and mix and shake the bacterial precipitate well to disperse it completely until no flocs exist. Transfer the bacterial suspension into a 50 mL centrifuge tube.
2. Add 5 mL Buffer ll, gently invert the centrifuge tube 6-8 times, and leave it at room temperature for 5 min, so that the bacteria are completely lysed and the solution is clear.
3. Add 5 mL Buffer lll, immediately invert the centrifuge tube 6-8 times and mix well until white flocculent is produced. Leave on ice for 12 min.
4. Centrifuge the above lysate at 12,000xg for 15 min at 4°C. Carefully aspirate the supernatant and transfer to a new 50 mL centrifuge tube.(After centrifugation, the precipitation is not completely separated from the supernatant, so repeat centrifugation once)
5. Add 10 mL of isopropanol. Mix well by inversion and leave on ice for 12 min.
6. Centrifuge at 12,000xg for 10 min at 4°C. Carefully discard the supernatant, invert and gently drain off the residouble liquid, add 0.5 mL Buffier l to completely dissolve the precipitate clumps (dissolution can be assisted by gently blowing with a wide-mouth pipette). Transfer to a new 1.5mL centrifuge tube and leave at room temperature for 12min.
7. Centrifuge the crude extract of plasmid at high speed for 2min at room temperature in a desktop centrifuge, and transfer the supernatant into a new 1.5mL centrifuge tube.
(2) Plasmid purification
1. 0.5 mL of plasmid crude extract add 100 μl Buffer IV (impurity removal solution A), gently mixing 12,000xg centrifugation for 2min, the supernatant will be transferred to a new centrifuge tube.
2. Add 100μl of Buffer IV (Impurity Removal Solution A), mix gently, centrifuge at 12,000xg for 5min and transfer the supernatant to a new tube.
3. Add 70mL BufferV (Impurity Removal Solution B), mix gently, centrifuge at 12,000xg for 5 min, transfer the supernatant to a new centrifuge tube.
4. 0.5mL isopropanol was added, mixed well, and left at room temperature for 10 min. 12,000xg centrifugation at room temperature for 10 min, the supernatant was discarded, washed gently with 1mL of 70% ethanol, the liquid was discarded, and the tube was inverted and cooled for 5 min at room temperature.
(Preparation of 70% ethanol in this step: 14mL 75% ethanol +1mL water)
5. 0.5mL ddH2O dissolved precipitate (wide mouth pipette gently blowing to assist dissolution)
6. Add 200mL Buffer VI (Impurity Removal Solution C), mix well and leave on ice for 20min, centrifuge at 12,000xg for 10min at room temperature, discard the supernatant, gently add 1m1 of 70% ethanol to wash twice, and then invert and cool at room temperature for 5-10 min to make the ethanol evaporate completely.
7. Add appropriate amount of dd H2O (250μL) to dissolve the precipitate (can be shaken in a 37°C water bath to aid dissolution)
2024.06.07 Friday
Outline:
Preparation of LB liquid medium and Amp + / Kan + solid medium [Saiyu Luo]
Detailed experiments
I. LB liquid medium [Saiyu Luo]
LB liquid medium configuration followed the protocol
Total volume =2L
II. Solid medium [Saiyu Luo]
We autoclaved and placed them in 1008 cabinet
Preparation of 8 Kan-LB plates (1:2000)
Store at 4℃ freezer
2024.07.07 Sunday
The first summer seminar after the final exam
2024.07.08 Monday
Outline:
I.Transformation:⑤⑥⑦⑧ →BL21[Saiyu Luo][Huixin Liang][Yueting Guo][Rui Yao]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
II.Prepare LB liquid medium[Saiyu Luo][Huixin Liang][Yueting Guo][Rui Yao]
Detailed Experiments
I Transformation:plasmid ⑤⑥⑦⑧ to BL21
[Saiyu Luo][Huixin Liang][Yueting Guo][Rui Yao]
Follow protocol : Transformation
The concentration of the plasmid >=100ng/μL
Heat-shock at 42℃ for 30s
Add 250μL SOC medium to every tube before shaking for 1h
Place the coated plate under 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Discription Picture
Melt the plasmid and competent cells on ice
Mark the tubes
Mark the plates of ⑤→BL21
Mark the plates of ⑥→BL21
Mark the plates of ⑦→BL21
Mark the plates of ⑧→BL21
Results(7.09 observed):
⑤→BL21 ⑥→BL21
⑦→BL21 ⑧→BL21
II.2L LB medium was prepared and ten Kan and str plates were poured
[Saiyu Luo][Huixin Liang][Yueting Guo][Rui Yao]
Followed protocol :Preparation of LB medium and plates pouring
2024.07.09 Tuesday
Outline:
I. Pick single colonies from transformed plates and shake:⑤⑥⑦⑧→BL21
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
II.Preparation of SOC medium
Detailed Experiments:
I. Pick single colonies from transformed plates and shake:⑤⑥⑦⑧→BL21
[Saiyu Luo][Zhongyu Chen] [Qiyu Tan][Sirui Dong] [Huixin Liang] [Yueting Guo]
[Yuxiao Qin] [Rui Yao]
Pick single colonies:⑤⑥⑦⑧→BL21 (three of each )and shake (15mL tube, 220rpm, 37℃ overnight shake)
Discription Pictures
pick single colony:⑤→BL21
pick single colony:⑥→BL21
pick single colony:⑦→BL21
pick single colony:⑧→BL21
Add 5ml LB and put single colonies picked into 15ml tube,and the 3 tube marked by red square were added the wrong antibiotic so they were discarded.
The 3 tubes marked by red square are the group that we made again
Shake for 1h
II.Preparation of SOC medium
[Saiyu Luo][Zhongyu Chen] [Qiyu Tan][Sirui Dong] [Yuetong Ge] [Huixin Liang] [Yueting Guo]
[Yuxiao Qin] [Rui Yao]
Follow protocol: Preparation of SOC medium
We prepared 100ml 10xSOC medium this time
Discription Picture
We divided the SOC into two 50ml tubes and store them in the -20℃ refrigerator.
2024.07.10 Wednesday
Outline:
I. Stored bacteria:⑤→BL21[Sirui Dong]
II. Miniprep:⑤⑥⑦⑧→BL21[Saiyu Luo]
III. PCR:⑤⑥ [Saiyu Luo]
IV. Agarose gel electrophoresis:⑤⑥[Saiyu Luo]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
Detailed experiments:
I. Stored bacteria[Sirui Dong]
store the bacteria solution ⑤→BL21 shaken overnight lasi night
Add 800μL bacterial solution to 200μL glycerin and froze at -80℃
II. Miniprep:⑤⑥⑦⑧→BL21[Saiyu Luo]
Follow protocol :TIANprep Mini Plasmid Kit protocol
After the growth of the transformed colonies, we performed plasmid Miniprep ⑤⑥⑦⑧→BL21 to verify the plasmid has already transformed into BL21 successfully.
The concentration of plasmids are as follows(unit:ng/μL):
III. PCR:⑤⑥[Saiyu Luo]
Followed protocol :PCR
we verified the plasmids we performed miniprep by PCR
System preparation
System composition (25μL system) :
The experimental steps are as follows:
1. Place the extracted plasmid on ice, defrosting ddH2O.
2.Calculate dilution method (dilute to 10ng/μL first, then dilute 40 times)
unit:μL
3. Mark 6 new EP tubes
4.Add dd H2O to each EP tube, and then add the 3μL stock solution corresponding to its label for centrifugation
5. Add 78μL H2O into a new EP tube
6.Take 2μL from the previous round of diluted tube and add it to the corresponding new EP tube (mixed with 78μL water)
7.Centrifuge, so that the water drops on the wall of the tube, and then mix with the vortex shaker, and then centrifuge
8.Return the original tube and diluent with a concentration of 10ng/μL to the penultimate layer of the -20℃ refrigerator
9.Centrifuge the primer for 5min
10. Take 2EP tubes, mark them as InputR and InputF, and heat DEPC water (the water is the leftover product of last year).
11. Add 41.7μLDEPC water to InputF, 40.8μL DEPC water to InputR, centrifuge and mix well
12. Mix 2μL primer with 98μL dd water, mix with vortex shaker, and put the remaining primer back to the bottom layer of -20℃ refrigerator
13.Take an EP tube marked with mix and add the following liquid (7xPCR reaction system other substances except the template) : 35μL 5xPrime Buffer 14μL dNTP mix 75.25μL ddH2O 1.75μL prime STAR enzyme 21μL InputF 21μL InputR
The enzyme needs to be thawed on ice, in order to maintain the stability of the enzyme character and reduce the loss, generally add the enzyme at the end, and the enzyme is generally stored with glycerin
14.Centrifuge and mix
15. Divide mix mixture into 6 EP tubes, each tube 24μL, EP tubes marked 01/05 1,2,3
16. Add 1μL plasmid with a concentration of approximately 250pg/μL to each EP tube
Program setting
98℃ 1min
98℃ 10s
55℃ 5s Repeat 30 cycles
72℃ 1.5min(Set according to PCR fragments about 1500nt)
72℃ 2min
40℃ hold
Total about 1.5 hours
17.After completion, put the PCR reagent back into the second layer of the -20℃ refrigerator
18.Turn off the PCR machine after the temperature drops
19.Return the plasmid diluted to 250pg/μL and the primer with concentration of 2umol/L to the penultimate layer of the -20℃ refrigerator
IV.Agarose gel electrophoresis:⑤⑥[Saiyu Luo]
Follow protocol : Agarose Gel Electrophoresis
The concentration of the gel is 1%
5μL of loading buffer were added to all samples
Run the gel at 135V for about 30min and then imaged it with UV light
Results
No distinct stand except marker
2024.07.11 Thursday
Outline:
I.Single/double enzyme digestion:⑤⑥⑦⑧[Saiyu Luo][Qiyu Tan]
II.Agarose gel electrophoresis[Saiyu Luo]
Detailed experiments:
I.Single/double enzyme digestion:⑤⑥⑦⑧[Saiyu Luo][Qiyu Tan]
Because there was no distinct stant except marker shown on the gel ran yesterday,we hypothesized that this might be the reason of PCR problem,so we single[Qiyu Tan]and double [Saiyu Luo]digest all the plasmids preped in 7.10 (⑤⑥⑦⑧) and run agarose gel to verify.
The single enzyme digestion system is as follows
The double enzyme digestion system is as follows
Figure
Discription Picture
The material we used
II.Agarose gel electrophoresis[Saiyu Luo]
Followed protocol :Agarose Gel Electrophoresis
The concentration of the agarose gel is 1%
2μL 6xloading buffer was added in each sample
Run the gel at 135V for 40min
The loading order and loading quantity are shown in the following table
unit:μL
Results
Single enzyme digestion
Double enzyme digestion
2024.07.12 Friday
Outline:
I. Transformation:⑤⑥⑦⑧→BL21 [Saiyu Luo]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
Detailed experiments:
I.Transformation:⑤⑥⑦⑧→BL21 [Saiyu Luo]
Due to the wrong result of agarose gel electrophoresis ,we suspect that the transformation is a failure,so we re-transform ⑤⑥⑦⑧ plasmids to BL21(DE3) competent cells from a new company(Sangon Biotech) [Saiyu Luo]
Follow protocol:Bacterial Transformation
Heat-shock at 42℃ for 45s
Add 350μL LB medium per tube before shake for 1h( 220rpm, 37℃)
Place the coated plate at 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Discription Picture
The competent cells we used
Melt the competent cells and plasmids on ice
Spread 200μL bacteria solution from the transformation on the plates
Result (7.13 observed)
Only ⑥→BL21 grows obvious colonies
2024.07.13 Saturday
Outline:
I.Pick single colonies from the transformed plates and shake:⑥→BL21[Saiyu Luo]
II.Bacteriological conservation: ⑥→BL21[Saiyu Luo]
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
Detailed experiments:
I.Pick single colonies from the transformed plates and shake:⑥→BL21[Saiyu Luo]
Dosage of systemic antibiotics:
Amp:100mg/ml 100ml+100μLAmp
Discription Picture
Put single colonies we picked into 15ml tubes
II.Stored the bacteria ⑥→BL21[Saiyu Luo]
Add 800μL bacterial solution to 200μL glycerin and frozen at -80℃
Discription Picture
Store the bacteria
The remaining bacterial solution was stored in a 4℃ refrigerator
The stored bacteria solution was stored in the -80℃ refrigerator
2024.07.14 Sunday
The experimental group had a second seminar.
2024.07.15 Monday
Outline:
I. Shake and store the bacteria:⑧-BL21,⑨-DH5α,⑩-DH5α,⑪-BL21,⑫-BL21
[Huixin Liang][Yueting Guo] [Rui Yao]
II. Agarose gel electrophoresis :⑤⑥⑦ and positive control[Qiyu Tan][Sirui Dong][Yuxiao Qin]
III. Transformation:⑤⑥⑦ and positive control→BL21[Qiyu Tan][Sirui Dong][Yuxiao Qin]
IV. Preparation of medium [Huixin Liang][Yueting Guo][Rui Yao]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed experiments:
I.Shake the bacteria:⑧-BL21,⑨-DH5α,⑩-DH5α,⑪-BL21,⑫-BL21[Huixin Liang][Yueting Guo] [Rui Yao]
To prepare for the midiprep tomorrow,we shake⑧⑪⑫-BL21(oringinal tube)and ⑩-DH5α(bacteria conservation from oringinal tube solution),then store the bacteria and continue to shake overnight.As we found that we forgot to shake ⑨-DH5α(bacteria conservation from oringinal tube solution)so we shake it overnight in 15ml tube.
We take the wrong stored bacteria solution in the morning:we did not take ⑨,take two ⑩(we thought that one is the oringinal tube and one is stored from the oringial tube) ,so we began to shake ⑨ in the evening
After shaking for 8h,we found ⑩ (the one from the oringinal tube)wasn't cloudy,so we suspected it was the antibiotics,so we aspirated 100μL bacteria solution and added it into another 5ml LB(without antibiotic) to explore this problem,but after a while we found that the bacteria solution we thought is from oringinal tube is actually the stored one,so we discard this tube and continue to shake the oringinal 2 tubes.
We found only one of the ⑩-DH5α became cloudy in the evening ,so we only stored its bacteria solution and add 3ml into 200ml LB and shake overnight
Before shake in conical flask, we stored the bacteria.
Figure
Discription Picture
The bacteria solution we add into 5ml LB to shake
The group shaken begin at 9:00 a.m.
Shake in conical flask overnight
II. Agarose gel electrophoresis :⑤⑥⑦ and positive control(Kan+)
[Qiyu Tan][Sirui Dong][Yuxiao Qin]
The concentration of the agarose gel is 1%
Run the gel at 135V for 30min
The loading sequence and system are shown in the following table
Results
III. Transformation:⑤⑥⑦ and positive control→BL21[Qiyu Tan][Sirui Dong][Yuxiao Qin]
Transformation
The system (2μL plasmid+50μL competent cells)heat-shocked at 42℃ for 45s,and the other system (4μL plasmid+100μL competent cells) heat-shocked for 60s
Add 500μL LB medium per tube before shake for 1h and 5min( 220rpm, 37℃)
IV. Shake
Shake at 37℃,220rpm
When adding 10μL bacterial solution to the PC centrifuge tube (without antibiotics), add 10μL one more time because it was not sure whether all 10μL was added, and the actual added volume may be greater than 10μL.
The tube ⑦-Trans1T1 (with antibiotics) was incorrectly marked and was discarded and redone.
Before adding bacteria to each tube, it should be mixed upside down. In this experiment, it was not mixed upside down at first and it's done after reminding
V. Spread the bacteria solution from transformation on the plates
Centrifuge all EP tubes were with a micro centrifuge at 1000rpm for 2min, and then pour out part of the supernatant, the remaining bacterial solution was about 200μL,spread 200μL from transformation on the plates.
Leave the plates upright for 30min, and invert the plates, incubate the plates overnight at 37℃
The actual incubator temperature was higher than 37 ° C.
Operator forgot to add LB medium to NC-tube( step12,) so we added 160μL LB before plate coating and then directly coated.
Results of transformation (7.16 observed)
VI. Preparation of medium [Huixin Liang][Yueting Guo][Rui Yao]
Preparation of LB and plates pouring
Follow protocol:Preparation of LB
We prepared 1L LB medium in total and 400mL of it is solid medium
We pour 14 LB-Str plates in total
Preparation of SOC
Follow protocol: Preparation of SOC medium
We prepared 100ml 1x SOC medium
1. Prepare the medicine, weigh it on a weighing instrument, add it to a small conical flask and hold it to 100mL
2.Seal the above LB medium (4 large 2 small):SOC medium (1 small) and put it into autoclave for sterilization(121℃,20 min)
Discription Picture
Preparation of SOC medium
Preparation of LB medium
2024.07.16 Tuesday
Outline:
I.Stored bacteria[Huixin Liang][Yueting Guo][Rui Yao]
II.Maxiprep plasmid and agarose gel electrophoresis:⑧-BL21, ⑩-DH5α, ⑪-BL21, ⑫-BL21 [Huixin Liang] [Yueting Guo] [Rui Yao]
III.Plate streaking:⑤⑥⑦ ,positive control,nuclear actin,nagative control→BL21[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
IV. Preparation of LB medium[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed experiments:
I.Stored bacteria [Huixin Liang][Yueting Guo][Rui Yao]
Followed protocol:strain the preservation
II.Maxiprep plasmid and agarose gel electrophoresis:⑧-BL21, ⑩-DH5α, ⑪-BL21, ⑫-BL21 [Huixin Liang] [Yueting Guo] [Rui Yao]
Maxiprep
Follow protocol:Vigorous plasmid maxiprep
Results
Agarose gel electrophoresis
Follow protocol:Agarose gel electrophoresis
The concentration of the agarose gel is 1%
Run at 35V for 40min
The load order and system are as follows(unit:μL)
Results
IV. Plate streaking:⑤⑥⑦ ,positive control,nuclear actin,nagative control→BL21
[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
Because it was found that all the shaken bacteria grew(7.15 began shake,overnight), but none of the coated plates grew(7.15 coat,overnight), which was suspected to be the problem of excessive incubator/bacterial solution,so we streak the plates to verify our conjecture.
The groups and results are as follows
Results (7.17 observed)
IV. Preparation of LB medium[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
Followed protocol:LB liquid medium
We prepare 1.6L LB in total
We pour 16 plates with Kan and 16 plates with Stc
2024.07.17 Wednesday
Outline:
I.Antibiotic resistance verification:Kan,Str[Qiyu Tan][Sirui Dong][Yuetong Ge]
II.Transformation:nuclear actin/⑨/⑩→BL21/transB/transetta
[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
III.Without/double digestion and agarose gel electrophoresis:⑥⑦⑧⑨⑩, nuclear actin(positive control)[Huixin Liang][Yueting Guo][Rui Yao]
IV.Overnight digestion:⑦⑧⑩[Huixin Liang][Yueting Guo][Rui Yao]
V.Shake the bacteria:⑤-BL21, ⑨-BL21[Qiyu Tan][Sirui Dong][Yuetong Ge]
VI.Preparation of LB medium[Qiyu Tan][Sirui Dong][Yuetong Ge]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed experiments:
I.Antibiotic resistance verification:Kan,Str[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
Due to the growth of nagative control,we suspect that the antibiotic may not suffecient,so we verified the resistance of antibiotic in several ways.
We use BL21(DE3) without transformation to streak/coat the plates and shake the bacteria to verify the resistance of Kan and Str
Plates streaking and coating
The bacteria solution used in verification is made by mixing 90μL LB medium and 10μL BL21(DE3) competent cells
Results (7.17 observed)
Bacteria shaking
We use three kinds of competent cells (BL21, TransB, and Transetta) to verify the resistance of three antibiotics (Kan5.21/Kan11.30/Str)
Kan(11.30) and Str are the antibiotic we used,Kan(11.30) is borrowed from others to set up a positive control
Concentration of antibiotic:
Kan(5.30):200mg/ml
Kan(11.30):100mg/ml
Str:200mg/ml
Results (7.18 observed)
Analysis
Our antibiotic(Kan 5.21 and Str) are not suffecient
V. Transformation:nuclearactin/⑨/⑩→BL21/transB/transetta
[Qiyu Tan][Sirui Dong][Yuetong Ge][Yuxiao Qin]
Follow protocol:Bacterial Transformation
After add plasmids into competent cells and on ice for 30min,we found that we forgot to turn on the water bath pot,so we continue to place the mixture on ice for 11min until the pot was ready.
Heat-shock at 42℃for 1min
Add 500μL SOC medium per tube before shake for 1h( 220rpm, 37℃)
Spread 200μL bacteria solution from transformation on the plate
Place the coated plate at 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Moisturize all plates with wet filter paper and sponge
Results(7.18 observed)
Since it was confirmed that antibiotic resistance was problematic, all plates were discarded and re-tested
VI. Without/double digestion and agarose gel electrophoresis :⑥⑦⑧⑨⑩,nuclear actin(positive control)
[Huixin Liang][Yueting Guo][Rui Yao]
Follow protocol:Restriction Digest of Plasmid DNA Agarose gel electrophoresis
Double digestion
The system are as follows:
Digest at 37℃ for 30min
Agarose gel electrophoresis
The concentration of the agarose gel is 1%
Run the gel at 135V for 40 min
The loading sequence and system are shown in the following table
unit:μL
Results
Analysis
IV.Overnight digestion:⑦⑧⑩[Huixin Liang][Yueting Guo][Rui Yao]
According to the results of the gel, we dicided to perform overnight enzyme digestion on ⑦⑧⑩ plasmids
Follow peotocol:Restriction Digest of Plasmid DNA
Digest at roomtemperature overnight
V. Shake the bacteria:⑤-BL21, ⑨-BL21[Qiyu Tan][Sirui Dong][Yuetong Ge]
Shake at 220rpm,37℃
The remaining post-shake bacterial solution in the 15-ml tube was stored in a 4-degree refrigerator
Results
Discard all bacteria tomorrow because of the abnormal phenomenon
Figure
Discription Picture
Shake the bacteria
VI.Preparation of LB medium [Qiyu Tan][Sirui Dong][Yuetong Ge]
Follow protocol: Preparation of LB
Prepare 1.6L in total
Add the solid ingredients suitable for the 1.5L system, and adjust to 1.6L due to constant volume error
2024.07.18 Thursday
Outline:
I.Agarose gel electrophoresis:⑦⑧⑩[Huixin Liang][Yueting Guo][Rui Yao]
II.Single/double digestion and ararose gel eletrophoresis:⑦⑧⑪⑫[Huixin Liang][Yueting Guo][Rui Yao]
III.Shake the bacteria:⑤-BL21, ⑨-BL21 and store[Huixin Liang][Yueting Guo][Rui Yao]
IV.Plate coating:nuclear actin/⑨/⑩→BL21/transB/transetta[Yuxiao Qin][Sirui Dong][Qiyu Tan][Yuetong Ge]
V.Preparation of preparing competent cells:⑦-BL21[Huixin Liang][Yuetong Ge]
VI.Antibiotic resistance verification[Huixin Liang][Yuetong Ge]
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed experiments:
I. Agarose gel electrophoresis:⑦⑧⑩[Huixin Liang][Yueting Guo][Rui Yao]
The concentration of the agarose gel is 1%
Run the gel at 135V for 40min
The loading sequence and system are shown in the following table
Results
II.Single/double digestion and ararose gel nucleic acid eletrophoresis:⑦⑧⑪⑫[Huixin Liang] [Yueting Guo] [Rui Yao]
Digest at 37℃ for 30min
The concentration of the agarose gel is 1%
Run the gel at 135V for 40 min
The digestion system and the loading sequence and system are shown in the following table
Results
Analysis
⑦ ⑧ ⑪ ⑫ The preliminary analysis of the enzyme band is correct, but there is a problem that the band is trailing
The solidification time is too short after the gel is dispensed, and the formation of the gap is too shallow. Next time, we should prolong the solidification time appropriately.
The temperature of the process of running the gel is too high. Pay attention to use more ice boxes to cool down the temperature, and observe the situation frequently.
III.Shake the bacteria:⑤-BL21, ⑨-BL21 [Huixin Liang][Yueting Guo][Rui Yao]
We shake the bacteria for maxi plasmid prep tomorrow
Figure
Discription Picture
Shake in conical flask
IV.Plate coating:nuclear actin/⑨/⑩→BL21/transB/transetta[Yuxiao Qin][Sirui Dong][Qiyu Tan][Yuetong Ge]
Since the plate we used before was not resistant, we re-poured the plates with effective resistance and spread the bacteria solution from transformation in 7.17 on new plates.
We pour plates twice,a total of 25 plates with Kan and 5 plates with Str.
We coat plates as following table
Results (7.19 observed)
V.Preparation of preparing competent cells:⑦-BL21[Huixin Liang][Yuetong Ge]
Follow protocol:The preparation before preparing competent cells
We prepare materials for the preparation of competent cells tomorrow
The steps of preparation are as follows
1. Prepare strain: ⑦Input 01 without lac operator-pCDFDuet-1 (Str)
2. Preparation of medicines and lance tips
Control chemical: anhydrous calcium chloride, glycerol (glycerol)
3. Weigh the drug: weigh 0.882g CaCl2
a) Take a quarter of the weighing paper and place it in an electronic balance (Precise to four decimal places) and fold it twice
b) Use the blue pipette tip to pick the granular anhydrous calcium chloride and place it in a EP tube on the EP tube rack for weighing
c) Theoretical weight:0.882g ,Actual weight: 0.9001g
4. Preparation of CaCl2/glycerol 100mL:
add 0.9001g CaCl2 and 10mL glycerol ( cut off the tip of the tip of the pipette to suck), and use a 50mL centrifuge tube to take RO water in two times, seal the mouth and mix.
5. autoclave:
a) A flask of non-resistant LB (200mL);
b) Sterilisation CaCl2/glycerol 100mL (4 configurations) Pay attention to aeration;.
c) Sterilise 15mL and 50mL centrifuge tubes in one box, and sterilise 1.5mL EP tubes (more than 50 in two boxes).
d) Sterilise one box of blue and yellow pipette tip each, andsterilise half box of 5mL large pipette tip. Packed them in kraft paper.
VI.Antibiotic resistance verification[Huixin Liang][Yuetong Ge]
We verify resistance by putting 3 kinds of different bacteria into 2 kinds of resistance (stc, Kan) and non-resistant LB medium
Analysis
1. Kan and Stc are suffecient
2. Plasmid⑦ has spectomycin resistance genes
Figure
Discription Picture
Results
2024.07.19 Friday
Outline:
I.Maxiprep,digestion and agarise gel electrophoresis:⑤-BL21, ⑨-BL21 [Huixin Liang][Yueting Guo][RuiYao][YuxiaoQin]
II.Preparation of competent cells:⑦-BL21[Huixin Liang][Yuetong Ge]
III.Transformation:nuclear actin/⑨/⑩→BL21/transB/transetta [Qiyu Tan][Sirui Dong
③→⑦-BL21/trans1t1[Huixin Liang][Yuetong Ge]
IV.Preparation of preparing competent cells:⑧-BL21,⑪-BL21,⑫-BL21 [Huixin Liang][Yuetong Ge]
V.Pour plates [Huixin Liang][Yuetong Ge]
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed experiments:
I.Maxiprep,digestion and agarise gel electrophoresis:⑤-BL21, ⑨-BL21[Huixin Liang][Yueting Guo][RuiYao][YuxiaoQin]
To make sure the bacteria the company gave us contained the right plasmid,we prep plasmids(shook in 7.18) by two methods(EndoFree MaxiPlasmid Kit & Vigorous plasmid maxprep kit ) from them and run agarose gel to verify.
Follow protocol:Maxiprep ,digestion and agarose gel electrophoresis
Results of maxiprep(EndoFree MaxiPlasmid Kit)
units:ng/μL
Results of maxiprep(Vigorous plasmid maxprep kit )
Digest at 37℃ for 30min
The concentration of the agarose gel is 1%
Run the gel at 135V for 40 min
The digestion system and the loading sequence and system are shown in the following table
Results
Figure
Discription Picture
Maxiprep
Get the plasmid
II.Preparation of competent cells:⑦-BL21[Huixin Liang][Yuetong Ge]
1. Put 200ml bacterial solution into four 50ml tubes (sterilized and pre-cooled), seal with a sealing film. Then ssstand on ice for 10 minutes, and mark the 50ml tubes
The bacterial solution used in this step should be slightly cloudy, not too cloudy or too clear, specifically refer to the following figure:
2.1600g, centrifuge at 4℃ for 10min, note that the centrifuge should be refrigerated in advance
3. Melt glycerin /CaCl2 (mixture) in a hot water separator
4. Discard the supernatant, add 10ml glycerin /CaCl2 to each bottle, pump and mix well, and seal with a sealing film
5.2470rpm, 1100g centrifuge for 5min
6.2 tubes were re-centrifuged due to precipitation suspension, and the other two tubes discarded the supernatant, added 10ml glycerol /CaCl2 and blew several times. The two tubes re-centrifuged were subjected to the same operation after centrifugation
7. Ice bath for 30min
8. Centrifuge 1100g again for 5min and discard the supernatant
9. Add 1ml glycerin /CaCl2 to each tube to dissolve the precipitation, then add 1mL glycerin /CaCl2, suction and mix well
10.Pick up 50 EP tubes with tweezers, mark "7" on the lid, add 50-100μL bacterial solution to each tube, and store them in the refrigerator at -80℃
III.Transformation:nuclear actin/⑨/⑩→BL21/transB/transetta[Qiyu Tan][Sirui Dong]
③→⑦-BL21/trans1t1[Huixin Liang][Yuetong Ge]
As we failed in transformation for many times,Tan and Dong decide to learn new steps of transformation from Ms.Qian,they transform plasmid⑨⑩ and nuclear actin(positive control) to 3 kinds of competent cells: BL21,TransB and transetta.
Heat-shock at 42℃for 90s and on ice for 1min
Add 500μL LB medium per tube before shake for 1h( 220rpm, 37℃)
Spread 200μL bacteria solution from transformation on the plate
Spread the solution from transformation on the plates until the bacteria solution dried,then Invert the coated plate at 37℃ and cultivate overnight.
To test the function of LIRA,Liang and Ge transform ③ into ⑦-BL21(Just made into competent cells)
Heat-shock at 42℃for 45s and on ice for 2min
Add 500μL SOC medium per tube before shaking for 1h( 220rpm, 37℃)
Spread 200μL bacteria solution from transformation on the plate
Place the coated plate at 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Results (7.20 observed)
IV.Preparation of preparing competent cells:⑧-BL21,⑪-BL21,⑫-BL21[Huixin Liang][Yuetong Ge]
Follow protocol: The preparation of preparing competent cells
V.Pour plates[Huixin Liang][Yuetong Ge]
We pour 15 plates in total,5 with Stc,5 with Amp and 5 with Amp+Stc
The concentration of antibiotic is 100μg/ml
2024.07.20
Outline:
I.Maxiprep for plasmids(Tiangen and Vigorous):⑦-BL21[Yueting Guo][Rui Yao][Yuxiao Qin]
II.Single/double digestion:⑦⑨[Yueting Guo][Rui Yao][Yuxiao Qin]
III.Shake bacteria:③→⑦-BL21 [Huixin Liang][Yuetong Ge]
IV.Preparation of making competent cells:⑤-BL21, ⑨-BL21[Huixin Liang][Yuetong Ge]
V.Transformation:③→⑦-BL21/BL21/trans1t1[Huixin Liang][Yuetong Ge]
②+⑩/④+⑥/④+nuclear actin→BL21/transB/transetta[Qiyu Tan][Sirui Dong]
VI.Preparation of competent cells:⑧-BL21,⑪-BL21,⑫-BL21[Huixin Liang][Yuetong Ge]
VII.Preparation of LB medium and plates pouring[Qiyu Tan][Sirui Dong]
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Maxiprep for plasmids(Tiangen and Vigorous):⑦-BL21[Yueting Guo][Rui Yao][Yuxiao Qin]
Follow protocol:Maxiprep
Results
II. Single/double digestion:⑦⑨[Yueting Guo][Rui Yao][Yuxiao Qin]
Digest at room temperature overnight
III. Shake bacteria:③→⑦-BL21 [Huixin Liang][Yuetong Ge]
We Pick colony of ⑦-BL21 that successfully transformed plasmid ③ from the double-resistant (Amp+stc)plate and shake
IV.Preparation of Making competent cells:⑤-BL21, ⑨-BL21[Huixin Liang][Yuetong Ge]
Follow protocol:The preparation of making competent cells
V.Transformation:③→⑦-BL21/BL21/trans1t1[Huixin Liang][Yuetong Ge]
Follow protocol:Transformation
Heat-shock at 42℃for 90s and on ice for 2min
Add 500μL SOC medium per tube before shake for 1h( 220rpm, 37℃)
Spread 200μL bacteria solution from transformation on the plate
Place the coated plate at 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Results(7.21 observed)
Figure
Discription Picture
Results of transformation
②+⑩/④+⑥/④+nuclear actin→BL21/transB/transetta[Qiyu Tan][Sirui Dong]
l Heat-shock at 42℃for 95s and on ice for 1min
Add 500μL LB medium per tube before shake for 1h( 220rpm, 37℃)
Spread 200μL bacteria solution from transformation on the plate
Place the coated plate at 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Results(7.21 observed)
VI.Preparation of competent cells:⑧-BL21,⑪-BL21,⑫-BL21[Huixin Liang][Yuetong Ge]
Follow protocol:The preparation of competent cells
VII.Preparation of LB medium and plates pouring[Qiyu Tan][Sirui Dong]
Follow protocol:The preparation of LB medium
We prepare 4L in total,and 2L of them was used to pour plates
We pour 3 types of plates:withAmp,withKan,withAmp+Kan
We pour 9 plates of each type
2024.07.21 Sunday
Outline:
I.Agarose gel electrophoresis:⑦⑨[Yueting Guo][Yuxiao Qin]
II.Shake bacteria:②+⑩/④+⑥/④+Nuclear actin→BL21/transB/transetta(transformed successfully),store and shake ⑥-DH5α[Qiyu Tan][Sirui Dong]
③→⑦-BL21 and store [Yuetong Ge][Rui Yao][Yueting Guo]
III.Preparation of competent cells:⑤-BL21, ⑨-BL21[Yuetong Ge][Rui Yao]
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Agarose gel electrophoresis:⑦⑨[Yueting Guo][Yuxiao Qin]
To ensure the plasmids contained in bacteria are correct,we extracted plasmid⑦ by EndoFree MaxiPlasmid Kit & Vigorous plasmid maxprep kit and ⑨ by Vigorous plasmid maxprep kit,then digest them by enzyme at room temperature overnight in 7.20,and run agarose gel today.
Follow protocol:The agarose gel electrophoresis
The concentration of the agarose gel is 1%
Run the gel at 135V for 40 min
The loading sequence and system are shown in the following table
unit:μL
Results
II.Shake bacteria:②+⑩/④+⑥/④+nuclear actin→BL21/transB/transetta(transformed successfully)[Qiyu Tan][Sirui Dong]
We pick single colonies from the plates that grew normally,and recoat the abnormal growth:cotransformation ④+⑥→BL21 K+A+ plate
Shake at 36.5℃,250rpm
Store and shake ⑥-DH5α[Qiyu Tan][Sirui Dong]
Because plasmid⑥ was going to run out,so we decided to prep some for further experiments.We shook the ⑥-DH5α in 15ml tube overnight in 7.20,and store the bacteria in 7.21,then we shake it in conical flask overnight to prepare for the maxiprep tomorrow
Shake at 37℃,250rpm
Pick single colonies:③→⑦-BL21[Yuetong Ge][Rui Yao][Yueting Guo]
We pick single colonies from ③→⑦-BL21 A+S+ plate and shake bacteria for miniprep tomorrow
Shake at 37℃,250rpm
Store bacteria:③→⑦-BL21[Yuetong Ge][Rui Yao][Yueting Guo]
After shaking for 8.5h,we store bacteria and store the rest of bacteria solution in 15ml tube at 4℃
III.Preparation of competent cells:⑤-BL21, ⑨-BL21[Yuetong Ge][Rui Yao]
Follow protocol: The preparation of competent cells
Monday/2024.07.22
Outline:
I. Miniprep/Maxiprep :③→⑦-BL21(miniprep) [Yueting Guo][Yuetong Ge]
②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21(miniprep)[Sirui Dong]
⑥-DH5α(maxiprep)[Qiyu Tan][Rui Yao][Yuxiao Qin]
II.Digestion:③→⑦-BL21 [Yueting Guo][Yuetong Ge]
⑥-DH5α[Qiyu Tan][Rui Yao][Yuxiao Qin]
②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21[Sirui Dong]
III.Transformation:④→⑧-BL21,①→⑪-BL21,②→⑫-BL21,③→⑤-BL21,①→⑨-BL21[Yueting Guo][Yuetong Ge]
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Miniprep/Maxiprep :③→⑦-BL21(miniprep) [Yueting Guo][Yuetong Ge]
②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21(miniprep)[Sirui Dong]
⑥-DH5α(maxiprep)[Qiyu Tan][Rui Yao][Yuxiao Qin]
Followed protocol:Miniprep and maxiprep
Results of ③→⑦-BL21(miniprep)
Results of ②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21(miniprep)
Results of ⑥-DH5α(maxiprep)
II.Digestion:③→⑦-BL21 [Yueting Guo][Yuetong Ge]
②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21[Sirui Dong]
⑥-DH5α[Qiyu Tan][Rui Yao][Yuxiao Qin]
Follow protocol: Digestion
Digestion:③→⑦-BL21
The system are as follows
Digest at room temperature overnight
DIgestion:②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21
The system are as follows
Digest at room temperature overnight
Digestion:⑥-DH5α
The system are as follows
Digest at room temperature overnight
III.Transformation:④→⑧-BL21,①→⑪-BL21,②→⑫-BL21,③→⑤-BL21,①→⑨-BL21[Yueting Guo][Yuetong Ge]
Foolow protocol:Transformation
⑧⑪⑫⑤⑨-BL21 have been made into conpetent cells
The plasmid was first diluted to 250ng/μL
2μL of the corresponding plasmid was added to 50μL of the competent cells,
Heat shocked at 42℃ for 90s, and on ice for 2min.
Add 500μL of SOC, and then placed obliquely on a shaker at 180rpm for 1h+.
Results (7.23 observed)
2024.07.23 Tuesday
Outline:
I.Agarose gel electrophoresis:③→⑦-BL21,②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21(mini),⑥-DH5α[Qiyu Tan][Rui Yao][Yuxiao Qin]
II.Shake the bacteria:③→⑦-BL21,②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21
[Qiyu Tan][Rui Yao][Yuxiao Qin][Yueting Guo][Yuetong Ge]
III.Transformation:③→⑦-BL21/BL21,④→⑧-BL21/BL21,①→⑪-BL21/BL21,②→⑫-BL21/BL21,③→⑤-BL21/BL21,①→⑨-BL21/BL21 [Qiyu Tan][Yuetong Ge]
IV.Preparation of LB medium and plate pouring
V.Plasmid extraction(mini prep):④+⑥→BL21
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I. Agarose gel electrophoresis:plasmid preped from
③→⑦-BL21,②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21(mini),⑥-DH5α[Qiyu Tan][Rui Yao][Yuxiao Qin]
Follow protocol:Agarose gel electrophoresis
plasmid ⑥ was maxipreped from the original bacteria,single and double digested overnight
plasmid ②+⑩, NA+④,④+⑥ were minipreped from the transformed bacteria
Use 1% agarose gel
Run at 135V for 40min
The system is as follows(unit:μL):
Results
unit:μL
Results
Analysis
1. ⑥All digestion showed nearly correct banding, including single and double digestion, without any impurity
2. ⑥No digestion showed three bands, and there may be linear, annular, or superhelix structure.
3. No bands at all in co-transformation, but no impurity bands either. It is speculated that this is a small extraction problem, and the measured concentration is also relatively low,would do big extraction next
Results
Analysis
We couldn't see any bands on the gel,which we thought no plasmid has been extracted.
We decided to shake the bacteria again in order to do Vigrous plasmid extraction.
II.Shake the bacteria:③→⑦-BL21,②+⑩→BL21,④+⑥→transB,④+nuclear actin→BL21
[Qiyu Tan][Rui Yao][Yuxiao Qin][Yueting Guo][Yuetong Ge]
Because the electrophoretic bands of mini plasmid extraction after the above transformation were incorrect, take the corresponding bacterial solution and expand in 200mL LB,waiting for Maxiprep tomorrow
II.Transformation:③→⑦-BL21/BL21,④→⑧-BL21/BL21,①→⑪-BL21/BL21,②→⑫-BL21/BL21,③→⑤-BL21/BL21,①→⑨-BL21/BL21 [Qiyu Tan][Yuetong Ge]
Follow protocol:Transformation
Heat-shock at 42℃for 90s and on ice for 2min
Add 500μL SOC medium per tube before shake for 1h( 220rpm, 37℃)
Spread 200μL bacteria solution from transformation on the plate
Invert the coated plate overnight at 37℃
Results (7.24 observed)
Figure
Discription Picture
Results of transformation
III.Preparation of LB medium and plate pouring
Follow protocol:Preparation of LB medium
Prepare 2 groups in total, 1L of the first group has been poured into the plate, and 2.4L of the second group)
2024.07.24 Wednesday
Outline:
I.Maxiprep and digestion:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21,④→nuclear actin-BL21[Qiyu Tan][Rui Yao][Yuxiao Qin]
II.Transformation:③→⑦-BL21/BL21,①→⑪-BL21/BL21,②→⑫-BL21/BL21,③→⑤-BL21/BL21,①→⑨-BL21/BL21[Huixin Liang][Yuetong Ge][Saiyu Luo]
III.Pick single colony and shake bacteria:④→⑧-BL21,①→⑨-BL21,③→⑤-BL21[Huixin Liang][Yuetong Ge][Saiyu Luo]
IV.Preparation of LB medium [Qiyu Tan][Rui Yao][Yuxiao Qin]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Maxiprep and digestion:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21,④→nuclear actin-BL21[Qiyu Tan][Rui Yao][Yuxiao Qin]
Follow protocol:Maxiprep
Since the precipitate was not yet completely separated from the supernatant, repeat the centrifugation after adding 5mL BufferIII, on ice for 12min and centrifugation
Step 6 mistakenly added 5mL Buffer I, so centrifuge for two minutes, add 10mL isopropyl alcohol again, and repeat the operation after adding isopropyl alcohol
Results
Digest overnigt at room temperature
II.Transformation:③→⑦-BL21/BL21,①→⑪-BL21/BL21,②→⑫-BL21/BL21,③→⑤-BL21/BL21,①→⑨-BL21/BL21 [Huixin Liang][Yuetong Ge][Saiyu Luo]
results (7.25 observed)
Figure
Discription Picture
Result of transformation
III. Shake bacteria:④→⑧-BL21,①→⑨-BL21,③→⑤-BL21 and store[Huixin Liang][Yuetong Ge][Saiyu Luo]
Pick the single colonies from successfuly transformed plates (double resistances)and shake at 220rpm,37℃
Store the bacteria
Figure
Discription Picture
Store the bacteria
IV.Preparation of LB medium [Qiyu Tan][Rui Yao][Yuxiao Qin]
Follow protocol:Preparation of LB medium
Prepare 2L LB in total
2024.07.25 Thursday
Outline:
I.Agarose gel electrophoresis:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21,④+nuclear actin→BL21[Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
II.Single/double digestion:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21 [Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
III.IPTG induction:③→⑦-BL21,①→⑨-BL21 [Huixin Liang][Yuetong Ge]
IV.PIck single colony and shake : ③→⑦-BL21, ①→⑪-BL21, ③→⑤-BL21, ①→⑨-BL21 [Huixin Liang][Yuetong Ge][Qiyu Tan]
V.Store the bacteria : ③→⑦-BL21(7.20), ①→⑨-BL21(7.23), ④→⑧-BL21(7.23), ③→⑤-BL21(7.23), ③→⑦-BL21(7.25), ①→⑪-BL21(7.25), ③→⑤-BL21(7.25), ①→⑨-BL21(7.25)[Huixin Liang][Yuetong Ge][Qiyu Tan]
VI.Transformation:②→⑫-BL21/BL21[Huixin Liang][Yuetong Ge][Qiyu Tan]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Agarose gel electrophoresis:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21,④+nuclear actin→BL21[Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
Agar-gel electrophoresis: Four groups of Maxiprep plasmids (digested overnight at 37℃ yesterday)
The loading order and system are as follows(unit:μL)
-0 means it's not digested by enzyme,-2 means it's digested by double enzyme
II.Single/double digestion:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21 [Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
According to the results of agarose gel eletrophoresis,digest the above 4 groups of plasmids except ④→NA overnight at room temperature
The system of digestion was as follows(units:μL)
Digest overnigt at room temperature
III.IPTG induction:③→⑦-BL21,①→⑨-BL21 [Huixin Liang][Yuetong Ge]
We shake the bacteria solution obtained from ①→⑨-BL21 and ③→⑦-BL21 and induced them by IPTG for 4h, store other cloudy bacteria solution
Discription Picture
Shake the bacteria before adding IPTG
IV. PIck single colony and shake : ③→⑦-BL21, ①→⑪-BL21, ③→⑤-BL21, ①→⑨-BL21 [Huixin Liang][Yuetong Ge][Qiyu Tan]
V. Store the bacteria : ③→⑦-BL21(7.20), ①→⑨-BL21(7.23), ④→⑧-BL21(7.23), ③→⑤-BL21(7.23), ③→⑦-BL21(7.25), ①→⑪-BL21(7.25), ③→⑤-BL21(7.25), ①→⑨-BL21(7.25)[Huixin Liang][Yuetong Ge][Qiyu Tan]
Figure
Discription Picture
Mark the tube before store the bacteria
VI. Transformation:②→⑫-BL21/BL21[Huixin Liang][Yuetong Ge][Qiyu Tan]
Because all the transformation about plasmid ② failed,so we re-transformated and coated the plates
Follow protocol:Transformation
Results of transformation (7.26 observed)
2024.07.26 Friday
Outline:
I.Agarose gel electrophoresis:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21[Qiyu Tan][Sirui Dong]
II.Ultrisonic bacteria disruption, Fluorescence detection and primary part of WB:③→⑦-BL21,①→⑨-BL21[All paricipation]
III.Shake bacteria::③→⑦-BL21/BL21,②→⑫-BL21[Huixin Liang][Yuetong Ge]
IV.Preparation of preparing competent cells:⑥-BL21,⑩-BL21[Huixin Liang][Yueting Guo]
V.Preparation and verification of antibiotic[Huixin Liang]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I. Agarose gel electrophoresis:③→⑦-BL21,②+⑩→BL21,④+⑥→BL21[Qiyu Tan][Sirui Dong]
Follow protocol:Agarose gel electrophoresis
The loading order and system are as follows(unit:μL)
Load 6 μL marker
Add 8μL 6x loading buffer to each sample,load the total 48μL
II.Ultrisonic bacteria disruption, Fluorescence detection and primary part of WB:③→⑦-BL21,①→⑨-BL21[All paricipation]
Follow protocol:Multi-Mode Microplate Reader
Ultrisonic bacteria disruption
1. Precipitate the suspended bacteria with 10ml PBS
2. Put the probe of the ultrasonic crusher into the heavy suspension and give it an ice bath(The probe should not touch the wall or the bottom, and should be cleaned with RO water in time after each use;Change the ice in the ice bath in time)
3. After clicking "Work", each tube of bacteria is carried out 3 times, and each project is carried out 10 times (each work 10s, rest 40s).
4. Centrifuge the broken bacteria for 10min at 5000rpm
5.Each tube of supernatant is transferred to 4-5mL centrifugal tubes (roughly 3ml in each centrifugal tube, not enough to fill 2.5ml)
6.Store the sorted supernatant in the refrigerator at -80℃ (bag marked with supernatant protein, where the label + of the tube should be →)
7.Start the machine, turn on the computer, open the software spectrophotometer, select A280
8. Clean the upper and lower measurement parts with 2.5μL ddH2O, and blot them dry with filter paper
9.Add 2μL ddH2O to the measuring part below the machine, cover the lid, and the software is blank. Move the mouse away and the software is measure to display the result. If the concentration is too high, repeat step 3 until the result is displayed as 0.0x
10. Dry the filter paper, add 2μL supernatant to the measuring part under the machine, and test each tube twice
11.Blot the filter paper, repeat step 2, clean the machine, shut down the computer and software
Results
Fluorescence detection
1. Add the ③→⑦ IPTG+ 12μL supernatant to 138μLPBS, and add the remaining 7.5μL supernatant to 142.5μL PBS, and mix well. The final concentration is 1.8mg/ml
2. Add the protein sample to the 96-well plate (black) and measure the fluorescence (488nm,525nm)
Resullts
Primary part of WB
1.Sampling:
system as above empty for 10μL 1xbuffer (to prevent collapsing when running glue) marker for 5μL buffer + 5μL marker original tube concentration of 18ug/μL diluted five times, on the sample 10μL
90V constant voltage running glue, to be sampled on the strip connected to a line and adjusted to 135V.
2.Transfer the film
use methanol for 3-5min activation soak the film
remove the glue on the line and the comb shape of the glue, with the transfer of the mould liquid in the process has been often wet glue, keep the glue wet
in accordance with the white board, sponge, two pieces of thick filter paper, a piece of thin filter paper, the film, the glue, a piece of thin filter paper, two thick filter paper, sponge, the blackboard synthetic box
ice
to 200mA current to turn the film 2h. 200mA current to turn the membrane for 2h
III.Attach milk, closed The membrane with bands will be placed in milk, shaking for 30min
IV.Add primary antibody, overnight
Figure
DIscription Picture
Centrifuge the bacteria solution and get the precipitation before ultrisonic disruption
Centrifuge the bacteria solution after ultrisonic disruption and get the supernatant fluid
III.Cultivation::③→⑦-BL21/BL21,②→⑫-BL21[Huixin Liang][Yuetong Ge]
Because we previously forgot to perform negative controls (without IPTG and without input plasmid), so we use the rest bacteria solution of ③→⑦-BL21 to preform IPTG induction again.
Cultured ③→⑦-BL21 and ② (two germplasm) →BL21, ③→BL21
All but ③→BL21 failed, possibly because the LB medium had been reformulated
Figure
Discription Picture
The bacteria seem to be die after shaking
IV.Preparation of preparing competent cells:⑥-BL21,⑩-BL21[Huixin Liang][Yueting Guo]
We precooled the materials we needed and prepare a mixture of glycerol and CaCl2
V.Preparation and verification of antibiotic[Huixin Liang]
We prepared and verified a new 100mg/ml spectacularmycin
2024.07.27 Saturday
Outline:
I.The posterior part of WB:①→⑨-BL21+/-,③→⑦-BL21+[Yueting Guo]
II.Shaking/IPTG induction and store the bacteria :②+⑩→BL21 ④+⑥→BL21, ②→BL21, ③→⑦-BL21,③→BL21,⑥-BL21,⑩-BL21[Huixin Liang][Yuetong Ge][Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
III.Preparation of competent cells:⑥-BL21,⑩-BL21[Huixin Liang][Yuetong Ge]
IV.Agarose gel nucleic acid eletrophoresis:verification of EcoRI[Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑤Input 01 without lac operator-pCOLADuet-1(pCOLADuet-input01)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑨Input 01 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input01)
⑩Input 05 with lac operator-pCOLADuet-1(pCOLADuet-lacO-input05)
⑪Input 01 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input01)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.The posterior part of WB:①→⑨-BL21+/-,③→⑦-BL21+[Yueting Guo]
We continue to finish the rest steps(after recover the primary antibody overnight) of WB
1.Wash the membrane 3 times with TBST.
Add a small amount of TBST to the cassette without overflowing the membrane, shake on a shaker (110-120) for 10 min, discard the TBST in the cassette and add new TBST.
Repeat three times without adding TBST for the third time.
Thaw the secondary antibody in water in advance, add the secondary antibody and shake on a shaker (50-60) for one hour to recover the secondary antibody.
Wash the membrane three times with TBST again.
2. Developing
Put the film into the black box of exposure solution, cover the box with a lid and shake it slightly for a few times to develop the exposure.
Results
II.Shake,IPTG induce or not and store the bacteria :②+⑩→BL21 ④+⑥→BL21, ②→BL21, ③→⑦-BL21,③→BL21,⑥-BL21,⑩-BL21[Huixin Liang][Yuetong Ge][Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
Shake bacteria
Discard the ungrown bacterial solution:2 of ②+⑩→BL21,1 of ④+⑥→BL21,1 of ②→BL21,2 of ③→BL21
For the bacteria shaken for IPTG induction,add 40μL IPTG(c=0.5M) to each conical flask and shake for another 4h
Centrifuge the bacteria solution after shaking and store at -80℃ waiting for ultrasonic crushing
Store the bacteria
Shake the bacteria to prepare for the IPTG induction tomorrow
Store the bacteria
Figure
Discription Picture
Store the bacteria as the picture
Centrifuge the bacteria solution after IPTG induction/shaking
Pick single colony and shake
III.Preparation of competent cells:⑥-BL21,⑩-BL21[Huixin Liang][Yuetong Ge]
Follow protocol:Preparation of competent cells
IV.Agarose gel nucleic acid eletrophoresis:verification of EcoRI[Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
To verify which EcoRI can lead to wrong results,we use 3 enzyme to run agarose gel
Follow protocol:Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The loading order and system were as folows(unit:μL)
Results
Analysis
EcoRI-S had some problem which can lead to wrong results
2024.07.28 Sunday
Outline:
I.Ultrisonic bacteria disruption,fluorescence detection and the primary part of WB:④+⑥→BL21,③→⑦-BL21 , ②-BL21[Saiyu Luo][Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
II.Store the bacteria:①→BL21、②(extracted)→BL21,③→BL21,②(extracted)→⑫-BL21 [Huixin Liang][Yuetong Ge][Yueting Guo]
III.IPTG induction:①→BL21、②(extracted)→BL21,③→BL21,②(extracted)→⑫-BL21 [Huixin Liang][Yuetong Ge][Yueting Guo]
IV.Cultivation:④→BL21,④→⑧-BL21 [Huixin Liang][Yuetong Ge][Yueting Guo]
V.Preparation of LB medium[Qiyu Tan][Sirui Dong]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑥Input 05 without lac operator-pCOLADuet-1(pCOLADuet-input05)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Ultrisonic bacteria disruption,fluorescence detection and the primary part of WB:④+⑥→BL21,③→⑦-BL21 , ②-BL21[Saiyu Luo][Qiyu Tan][Sirui Dong][Rui Yao][Yuxiao Qin]
Follow protocol:Ultrisonic bacteria disruption ,Fluoredcence detection ,WB
Results of fluoredcence detection
Figure
Discription Picture
Add 10ml PBS and mix well
II. Store the bacteria:①→BL21、②(extracted)→BL21,③→BL21,②(extracted)→⑫-BL21 [Huixin Liang][Yuetong Ge][Yueting Guo]
Figure
Discription Picture
Store the bacteria
III.IPTG induction:①→BL21、②(extracted)→BL21,③→BL21,②(extracted)→⑫-BL21 [Huixin Liang][Yuetong Ge][Yueting Guo]
Shake at 220 rpm for 4h before add IPTG
Results
①→BL21 failed to grow,others grew successfully
Add 40μL IPTG(c=0.5M) to one conical flask of each group,and shake for another 4h at 220rpm,37℃
Centrifuge the bacteria solution at 5000rpm,10min at a time,store the precipitation at -80℃
III. Cultivation:④→BL21,④→⑧-BL21 [Huixin Liang][Yuetong Ge][Yueting Guo]
V.Preparation of LB medium[Qiyu Tan][Sirui Dong]
Follow protocol:Preparation of LB Medium
We prepare 2.8L LB in total
2024.07.29 Monday
Outline:
I.Ultrisonic bacteria disruption,:③-BL21 IPTG+/-,④→⑧-BL21 IPTG-,④→BL21(IPTG-)[Qiyu Tan][Sirui Dong][Rui Yao]
II.Fluorescence detection:③→⑦-BL21 IPTG+/-,③-BL21 IPTG+/-[Qiyu Tan][Sirui Dong][Rui Yao]
III.Primary part of WB:③→⑦-BL21 IPTG+/-,③-BL21 IPTG+/-[Sirui Dong]
IV.Store the bacteria and IPTG induction:④→⑧-BL21 ,④→BL21[Huixin Liang][Yuetong Ge]
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
Detailed Experiments:
I.Ultrisonic bacteria disruption:③→BL21 IPTG+/-,④→⑧-BL21 IPTG-,④→BL21(IPTG-)[Qiyu Tan][Sirui Dong][Rui Yao]
Follow protocol:Ultrisonic bacteria disruption
IV. Fluorescence detection:③→⑦-BL21 IPTG+/-,③→BL21 IPTG+/-[Qiyu Tan][Sirui Dong][Rui Yao]
Follow protocol:Fluorescence detection
Results
III.Primary part of WB:③→⑦-BL21 IPTG+/-,③-BL21 IPTG+/-[Sirui Dong] [Saiyu Luo][Yuxiao Qin]
Follow protocol: WB,Preparation of running buffer and trans buffer
Figure
Discription Picture
Prepare the 10x running buffer and 10x trans buffer
IV.Store the bacteria and IPTG induction:④→⑧-BL21 ,④→BL21[Huixin Liang][Yuetong Ge]
Figure
Discription Picture
process
2024.07.30 Tuesday
Outline:
I.Ultrisonic bacteria disruption:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/- [all participants]
II.Primary part of WB and coomassie brilliant blue:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/-[all participants]
III.Maxiprep for plasmids and digestion:④→⑧-BL21[Rui Yao][Yuxiao Qin]
IV.Shake the bacteria:④→⑧-BL21;④→BL21;①→BL21 [Huixin Liang][Yuetong Ge]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
Detailed Experiments:
I.Ultrisonic bacteria disruption and fluorescence detection:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-[all participants]
Follow protocol:Ultrisonic bacteria disruption and fluorescence detection
Results of ultrisonic bacteria disruption
Results of fluorescence detection
II.Primary part of WB and coomassie brilliant blue:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/-[all participants]
Follow protocol:Western Blot and Coomassie staining of the gel
Prepare sample of SDS-PAGE as follows
1.Prepare 5x sample system
Target: c=18ug/μL 100μL
2.Prepare 1X sample
Target: 3.6ug/μL 100μL
3. prepare 1X sample directly
4. After preparation, heat at 100℃ for 15 mins, then cool down.
Total 2 groups, each group run two pieces of the same glue, a total of 4 pieces of glue, sample order is as follows (from left to right)
Preparation of Coomassie bright blue dye and eluent
Follow protocol:Coomassie brilliant blue dye and destaining solution
We prepare 200ml 0.25% coomassie brilliant blue dye and 1L eluent in total
III.Maxiprep for plasmids and digestion:④→⑧-BL21[Rui Yao][Yuxiao Qin]
Follow protocol:Vigorous plasmid maxiprep and restriction digest of plasmid DNA
Results of maxiprep
Digest system
Digest overnight at room temperature
IV. Shake the bacteria:④→⑧-BL21;④→BL21;①→BL21 [Huixin Liang][Yuetong Ge]
We shake bacteria in 15ml tube for IPTG induaction tomorrow
Shake at 220rpm,37℃
2024.07.31 Wednesday
Outline:
I.Subsequent part of WB:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/-[Huixin Liang][Yuetong Ge][Yueting Guo]
II.Coomassie brilliant blue color destaining:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/-[Qiyu Tan][Sirui Dong]
III.IPTG induction:④→⑧-BL21,④→BL21,①→BL21[Huixin Liang][Yuetong Ge][Yueting Guo]
IV.Ultrisonic bacteria disruption:①→BL21,②→⑫-BL21 [Huixin Liang][Yuetong Ge] [Yueting Guo][Qiyu Tan][Sirui Dong]
V.Fluorescence detection:②→⑫-BL21[Qiyu Tan][Sirui Dong]
VI.Agarose gel electrophoresis and digestion[Rui Yao][Yuxiao Qin]
VII.Cultivation:⑧-BL21 [Rui Yao][Yuxiao Qin]
①H01 with lac operator-pET-15b(pET-15b-lacO-H01-linker-EGFP)
②H05 with lac operator-pET-15b(pET-15b-lacO-H05-linker-EGFP)
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
④H05 without lac operator-pET-15b(pET-15b-H05-linker-EGFP)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑧Input 05 without lac operator-pCDFDuet-1(pCDFDuet-input05)
⑫Input 05 with lac operator-pCDFDuet-1(pCDFDuet-lacO-input05)
Detailed Experiments:
I.Subsequent part of WB:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/-[Huixin Liang][Yuetong Ge][Yueting Guo]
Follow protocol:Western Blot
Results
II.Coomassie brilliant blue color destaining:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/-[Qiyu Tan][Sirui Dong]
Follow protocol: Coomassie staining of the gel
V. Store bacteria and IPTG induction:④→⑧-BL21,④→BL21,①→BL21[Huixin Liang][Yuetong Ge][Yueting Guo]
Store bacteria before induction
Add 1ml bacteria solution from 15ml tube and shake at 220rpm for 4h before induction
Because of non-growth,group ④→BL21 shake for another 1h20min before adding IPTG
Add 40μL IPTG(c=0.5M) to each conical flask and shake for another 4h
Centrifuge the bacteria solution at 5000rpm,10min at a time,store the precipitation at -80℃
IV.Ultrisonic bacteria disruption:①→BL21,②→⑫-BL21[Qiyu Tan][Sirui Dong][Huixin Liang][Yuetong Ge][Yueting Guo]
Follow protocol:Ultrasonic disruption of bacteria
Results
V.Fluorescence detection:③→⑦-BL21/BL21,④→⑧-BL21/BL21,②→⑫-BL21/BL21 [Qiyu Tan][Sirui Dong]
dilute sample to 1.8ug/μL total volume=650μL
Results
VI.Agarose gel electrophoresis and digestion:group③→⑦-BL21 and group ④→⑧-BL21 [Rui Yao][Yuxiao Qin]
Follow protocol:Agarose gel electrophoresis and digestion
Loading order and system(unit:μL)
Results
Due to the unsited bands, digest again to prepare 8.1 electrophoresis
System of digestion
Digest overnight at room temperature
VII.Cultivation:⑧-BL21 [Rui Yao][Yuxiao Qin]
Because of the few remaining plasmids, shake ⑧ bacteria for the Maxi plasmid extraction next day
Add 500μL bacteria solution to 200ml LB
The concentration of stc is 100ug/ml
Shake at 220 rpm overnight
2024.08.01 Thursday
Outline:
I. Ultrasonic bacteria disruption:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-
[Huixin Liang][Yuetong Ge] [Qiyu Tan][Sirui Dong]
II. Fluorescence detection:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,①→⑨-BL21 IPTG+/-,①→BL21 IPTG+/- [Qiyu Tan][Sirui Dong]
III. WB(Part1):④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/- [Huixin Liang][Yuetong Ge]
IV. Coomassie brilliant blue :④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,③→⑦-BL21 IPTG+/-;③→BL21 IPTG+/- [Huixin Liang][Yuetong Ge]
V. Agarose gel electrophoresis:③,⑦,③→⑦-BL21,④,⑧,④→⑧-BL21 [Rui Yao][Yuxiao Qin]
VI. Digestion:③,⑦,③+⑦ [Rui Yao][Yuxiao Qin]
VII. Maxiprep plasmid :⑧ [Rui Yao][Yuxiao Qin]
I. Ultrasonic bacteria disruption, Fluorescence detection and primary part of SDS-PAGE:④→⑧-BL21 IPTG+/-;④→BL21 IPTG+/-,①→⑨-BL21 IPTG+/-,①→BL21 IPTG+/-
Follow protocol:Ultrasonic disruption of bacteria,Multi-Mode Microplate Reader ,WB
(1)Protein concentration:
(2) Fluorescence detection
Dilute protein sample to 1.8μg/μL
then Load each protein sample in four wells, 400μL per well, distributed in A1~H4
(3) WB sample making:
1X sample : 3.6μg/μL, 100μL System
Heat the sample at 100℃ for 5min and store at -20℃ for WB tomorrow
Loading order as follows:
(4) SDS-PAGE
Loading order as follows:
II. Agarose gel electrophoresis:③,⑦,③→⑦-BL21,④,⑧,④→⑧-BL21
Follow protocol: Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The loading order and system were as folows(unit:μL)
Result
If the band is correct, the transformation of ③+⑦ and ④+⑧ is successful. And the band is more distinct.
III. Digestion:③,⑦,③+⑦
The enzyme digestion system is as follows
Digest at 37℃ for 30min
IV. Maxiprep plasmid :⑧
Follow protocol:Vigorous Plasmid Maxiprep
The concentration:
Handwriting:
2024.08.02 Friday
Outline:
I .The subsequent part of WB:④⑧series (7.31 induction) [Huixin Liang][Yuetong Ge][Yueting Guo]
II. The subsequent part of SDS-PAGE :③⑦series [Qiyu Tan][Sirui Dong]
III. Agarose gel electrophoresis :③⑦series [Rui Yao][Yuxiao Qin]
Detailed Experimental Record
I. Preparation of blocking buffer(5% skim milk powder) and secondary antibody
Follow protocol: Western blot
1. 5% milk(blocking buffer) preparation
Weigh 2.5g skim milk powder and add it into a 50mL centrifuge tube. Set the volume to 50mL by TBST.Mix upside down, further mix on the shaker(100rpm)
2. 1% blocking buffer
Take 2mL 5% skim milk powder in 15mL centrifuge tube and use TBST to adjust volume to 10mL
3. Preparation of secondary antibodies
Add 5μL Goat Anti-Rabbit IgG H&L/HRP into 1% blocking buffer( 1:2000).
II. The subsequent part of WB
Follow protocol: Western Blot
Analysis:
Basically consistent with the results of fluorescence assay, the expression of IPTG+ group was significantly higher than that of IPTG- group, ④→BL21 IPTG+ was abnormally higher
III Complete the SDS-PAGE Coomasil bright blue elusion
Follow protocol: Coomassie staining of the gel
Result:
1. Bands close to the size of GFP protein appeared in the correct position in both groups ③→⑦ and ④→⑧, and the GFP carried by the plasmid was successfully expressed.
2. In groups ③→⑦, the expression of GFP protein in H01without lac was significantly different under IPTG induction and with or without input sequence, but the band signal of H01 IPTG- was higher and slightly less than 27kDa, which was inconsistent with the results of the microplate reader. The reason is unclear.
3. In groups ④→⑧, the effect of IPTG induction was obvious, but the effect of input on the GFP expression of H05 sequence was not high, which was consistent with the results of the Multi-mode Microplate Reader.
IV Perform ③-⑦ series agarose gel electrophoresis
Follow protocol: Agarose gel electrophoresis
120mL 1XTAE should be heated to 100mL to make the glue to reach the appropriate concentration, otherwise the glue concentration is low, the band may be a little loose
It is placed on the -20℃ refrigerator in room 1008
Electrophoresis at 135v,45min
Handwriting
2024.08.05 Monday
Outline:
I. Cultivation:①→⑨-BL21 and ②(Maxi prep)→ ⑫-BL21 [Huixin Liang][Yuetong Ge]
II. Digestion:④-⑥;②-⑩;⑧ [Rui Yao][Yuxiao Qin]
Detailed Experimental Record
I. Cultivation:①→⑨-BL21 and ②(Maxi prep)→ ⑫-BL21
Take two bottles of 200mL LB medium and add 200μL Amp+200μL Stc/200μL Amp+200μLkan (the concentration of antibiotics is 100mg/mL), shake well
Take two 15mL tubes and mark them as follows(Add the corresponding 5mL LB medium):
①→⑨-BL21 A+K+ Bacteria 1A (7.25) 8.5 Shake
② → ⑫-BL21 A+S+ Bacteria 1A (7.25) 8.5 Shake
Add 1mL of the corresponding LB-antibiotic (as shown in the figure) and put it into the shaking incubator(220rpm, 37℃).
After 1.5h, the bacterial solution was found to be turbid, we absorbed 3mL bacterial solution from each tube and added them to the above 200mL LB medium at 220rpm and shaked overnight at 37℃.
II. Digestion:④-⑥;②-⑩;⑧
Systems are shown below
Put the system under the room temperature, digest overnight.
Handwriting
2024.08.06 Tuesday
Outline:
I.Agarose gel electrophoresis ④-⑥;②-⑩;⑧ series [Rui Yao][Yueting Guo]
II. Maxiprep plasmid: ①→⑨-BL21 and ②(Maxiprep)→ ⑫-BL21 [Rui Yao][Yueting Guo]
III. Digestion:①→⑨; ②-⑩; ②+⑫ [Rui Yao][Yueting Guo]
Detailed Experimental Record
I. Agarose gel electrophoresis ④-⑥;②-⑩;⑧ series
Follow protocol: Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The load order and system are as follows(unit:μL)
Results
II. Maxiprep plasmid:①→⑨-BL21 and ②(Maxi prep)→ ⑫-BL21
Follow protocol:Vigorous plasmid maxiprep
Results
Note:
①→⑨ plasmid crude extract about 1mL, because the previous step is not completely drained
②→⑫ bacteria was fully lysed but still transparent
III. Digest:①→⑨;②-⑩;②+⑫
Follow protocol:Agarose gel electrophoresis
The system are as follows:
Put the system under the room temperature, digest overnight.
Handwriting
2024.08.07 Wednesday
Outline:
I.Agarose gel electrophoresis of ②from →⑫-BL21 series, ①→⑨-BL21 series, ②+⑩→BL21 series [Rui Yao][Yueting Guo][Yueting Guo]
II. Shake bacteria ①→⑨-BL21 [Huixin Liang][Yuetong Ge]
Detailed Experiments
I. Agarose gel electrophoresis of ② from → -BL21 series, ①→⑨-BL21 series, ②+⑩→BL21 series
Follow protocol:Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The load order and system are as follows(unit:μL)
Result:
The concentration of ①+⑨ is too low, resulting in no banding. So,we shaked the bacteria again.
II. Shake bacteria ①→⑨-BL21
1. Take 1 bottles of 200mL LB medium and add 200μL Amp+200μL kan (the concentration of antibiotics is 100mg/mL), shake 2h
2. Take 2 x15mL tubes and mark them as follows:
①→⑨-BL21 A+K+ Bacteria 1B (7.25) 8.7 Shake
①→⑨-BL21 A+K+ Bacteria 2A (7.25) 8.7 Shake
Add 5mL corresponding LB-medium
3. Add 500μL of the corresponding LB-antibiotic medium (as shown in the figure) and put it into the shaking incubator(220rpm, 37℃).
4.After 2h, the bacterial solution was found to be turbid, and absorb 4mL bacterial solution from ①→⑨-BL21 A+K+ Bacteria 2A (7.25) 8.7 ,added to the above 200mL LB medium at 220rpm and shake overnight at 37℃
Handwriting
2024.08.08 Thursday
Outline:
I. Maxiprep plasmid :①→⑨ [Rui Yao][Yuxiao Qin]
II. Preparation of LB medium [Rui Yao][Yuxiao Qin][Yueting Guo]
III. Digestion:①→⑨series [Rui Yao][Yuxiao Qin][Yueting Guo]
Detailed Experiments
I. Maxiprep plasmid :①→⑨
Follow protocol:Vigorous plasmid maxiprep
Results
The concentration of Group ①→⑨ is 60.8ng/μL
II. Digestion:①→⑨series
Systems are shown below
Digest under room temperature overnight.
Handwriting
2024.08.09 Friday
Outline:
I. Agarose gel electrophoresis ①→⑨-BL21 series [Rui Yao][Yueting Guo]
II. Paper part
Write notebook[Huixin Liang][Yuetong Ge]
Write part page [Qiyu Tan]
Write Result page[Sirui Dong]
Write protocol page [Yueting Guo]
Detailed Experiments
Follow protocol: Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The load order and system are as follows(unit:μL)
Result:
All the bands are expected.
Handwriting
2024.08.12 Monday
Outline:
I. Digestion:①-⑫ all plasmids [Rui Yao][Yueting Guo]
I. Formulate complete medium [Sirui Dong][Saiyu Luo]
II. Cell recovery:786-O [Sirui Dong][Saiyu Luo][Huixin Liang][Yuetong Ge]
Detailed Experiments
I. Digestion:①-⑫ all plasmids
Systems are shown below
Digest under room temperature overnight
II. Complete medium:
The base medium for this cell line is RPMI-1640 Medium.
To make the complete growth medium, add the following components to the base medium: fetal bovine serum to a final concentration of 10%.
III. Thawing of Frozen Cell Lines: 786-O
1. Collect cells:786-O from liquid nitrogen storage wearing appropriate personal protective equipment and transfer to the laboratory in a container of liquid nitrogen or on dry ice.
2. Quickly transfer the freezing tube to a 37°C water bath until only one or two small ice crystals, if any, remain 2 minutes. It is important to thaw rapidly to minimize any damage to the cell membranes.
Note: Do not totally immerse the freezing tube as this may increase the risk of contamination.
3. Pellet the cells by centrifugation at 150 x g for 5 minutes and resuspend the cell pellet in fresh medium using the 12mL volume to achieve the correct seeding density in 10cm petri dish.
Handwrting
2024.08.13 Tuesday
Outline:
I. Digestion: ⑦⑧⑨⑫(again) [Rui Yao][Yueting Guo]
II. Agarose gel electrophoresis: ①-⑫ [Rui Yao][Yueting Guo]
III. Culture the cells 786-O in vitro [Huixin Liang][Yuetong Ge]
Detailed Experiments
I. Agarose gel electrophoresis: ①-⑫
Follow protocol: Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The load order and system are as follows(unit:μL)
Result:
The location of the bands is roughly correct, and some bands are not aesthetically expected (⑨ do not run away, ⑦⑧⑩ are too bright).
The result is as follows:
II. Digestion:⑦⑧⑨⑫ again according to the results
Systems are shown below
Put the system under the room temperature, digest overnight.
IV. Culture the cells 786-O in vitro
Follow protocol: Cell lines
1. Observe the state of the cells, they grow well.
2. Discard the supernatant. Wash once with 5 mL PBS carefully.
3. Add the medium 12mL, place them in the incubator.
Handwriting
Date:2024.08.14 Wednesday
Outline:
I. Agarose gel electrophoresis: ⑦⑧⑨⑫ [Rui Yao][Yueting Guo]
I.Passage the cells 786-O [Sirui Dong][Saiyu Luo] [Qiyu Tan][Huixin Liang][Yuetong Ge]
Detailed Experiments
I. Agarose gel electrophoresis: ①-⑫
Follow protocol: Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The load order and system are as follows(unit:μL)
Result:
The location of the bands is roughly correct.
The picture is as follows:
II. passage
Digest the cells:
① Use a pipette to aspirate out the waste liquid in the culture dish under negative pressure. Add 3mL PBS to rinse and then suck out the liquid again
② Add trypsin digestion solution 2mL.Incubate at 37°C for 2 minutes.
③ Add 2mL DMEM, rinse the bottom of the culture dish and collect cells.
④Centrifuge cells at 1000rpm for 5min.
⑤ Discard the supernatant, add PBS again, centrifuge again and remove the supernatant
⑥ Add 1mL DMEM and mix well.
⑦ Dilute the cells to a general cell density of 5 X 103 cells per well
Handwriting
2024.08.16 Friday
Outline:
I. Transwell and wound healing (Day1)
[Sirui Dong][Saiyu Luo] [Qiyu Tan][Huixin Liang][Yuetong Ge]
II.Paper Part
I Write notebook page [Huixin Liang][Yuetong Ge][Yueting Guo]
II Write Parts page [Qiyu Tan]
III Design the wet lab parts of wiki [Sirui Dong]
IV Write Protocol page [Rui Yao][Yuxiao Qin], [Yueting Guo] helped
V Design experiments [Yuetong Ge]
VI Connect with model group [Qiyu Tan][Rui Yao][Yuetong Ge]
Detailed Experiments
I.Prepare the overexpression conditions:
Groups:mimic-142-3p ; inhibitor-142-3p ;mimic-210-3p ; inhibitor-210-3p
1. Add OPti-Medium and RNA iMax into three EP tubes , (100μl OPti-Medium and 1μl RNA iMax each ),mix well,and hold at room temparature for 5min
2. Dilute mimic-142-3p/inhibitor-142-3p/mimic-210-3p/inhibitor-210-3p with DEPC H2O
(1OD + 125 μL DEPC H2O);
Dilute control with DEPC H2O (0.5OD Control + 125 μl DEPC H2O)
3. Separately add 1μL mimic-142-3p, 1μL inhibitor-142-3p,1μL mimic-210-3p ;1μL inhibitor-210-3p,1μL control into aforesaid six EP tubes, mix well, and hold at room temparature for 20min.
II. Transwell
Follow protocol:Transwell
1. Prepare - Matrigel: empty medium DMEM = 1:4
Add 40 μL of prepared Matrigel to the Transwell
2.Leave it at 37°C until Matrigel solidifies.About 45min.
3.Take out the cultured cells, discard the medium, digest the cells with trypsin. After termination of the medium containing serum, collect the cells in a 15ml centrifuge cylinder and centrifuge it at 1000rpm for 5min.
4.Discard the supernatant, gently resuspend the cells with 5 ml of PBS for washing, and centrifuge it at 1000 rpm for 5min.
5.Resuspend the cells with 2 ml of serum-free medium for cell counting. The number of cells is 5×104. The volume of cells and serum-free medium is 100 μL in total.
6. In the empty 24-well plate, add 650 μl of culture medium with 20% serum at the bottom of each well. Sit the chamber on the top and add 100 μl of mixed serum-free cell mixture into the upper chamber.
7. Add the cells vertically. Be careful not to touch the upper surface of the chamber.
8. Add reagents to upper chamber and lower chamber :
(1)After the upper chamber glue has set,add 100μL cell suspension to per well of it,add 100μL overexpression conditions to per well of it.
(2)Add 650μL DMEM containing 20% serum to each well of the lower chamber(500μLDMEM+150μL serum)
9.Culture it at 37℃ for 48h.
III. Wound Healing
Follow protocol:Wound Healing
1.Take a six-well plate and mark three parallel lines on the bottom. Label the corners with information about each well.
2.Cells were plated in a general cell density of 5X105 cells per well.
Handwriting:
Date:2024.08.17 Saturday
Outline:
I. Transwell and wound healing (Day2)
[Sirui Dong][Saiyu Luo] [Qiyu Tan][Huixin Liang][Yuetong Ge]
Detailed Experiments
Wound healing
Follow protocol: Wound Healing
1.The cells are full grown, the six-well plate is withdrawn and three parallel lines are drawn with the tips along the previously drawn straight line.
2.Wash slowly with PBS and add 3mL of serum-free medium. Select the spot for photographing with an inverted microscope, and mark it as 0h.
Figure1:Wound Healing result of exosomes containing miR-142-3p in 786-o cells.
Figure2:Wound Healing result of exosomes containing miR-210-3p in 786-o cells.
Handwriting:
2024.08.18 Sunday
Outline:
I. Transwell and Wound healing (Day3)
[Sirui Dong][Saiyu Luo] [Qiyu Tan][Huixin Liang][Yuetong Ge]
II.Paper work(This week)
Write notebook[Huixin Liang][Yuetong Ge]
Write part page [Qiyu Tan]
Write Result page[Sirui Dong]
Write protocol page [Yueting Guo]e[Rui Yao][Yuxiao Qin],
Detailed Experiments
I .Transwell
Follow protocol:Transwell
1. Fix cells:
Add 850 μL 4% paraformaldehyde to the empty wells. Place the chambers into
the wells and fix for 20min.
2. Giemsa staining:
Fix the cells in methanol for 10 min, discard the fixative and rinse the cells with distilled water.
The Giemsa stain was diluted with PBS (Giemsa stain:PBS=1:9). Add 850μL of Giemsa stain to each well ,and stain with wet box at 37℃ for 1h or overnight at room temperature.
3. Rinse well with distilled water and place under the microscope.
4. Invasive cell counting: Randomly select ③-⑤ fields of view under the microscope and count the number of cells migrating to the lower side of the membrane.
Result:
Transwell result of miR-142-3p in 786-O cells. 786-O (PUMC) is human kidney homo cells, which simulate the cancer environment to test function of miR-142-3p invasion.
Transwell result of miR-210-3p in 786-O cells. 786-O (PUMC) is human kidney homo cells, which simulate the cancer environment to test function of miR-210-3p invasion.
II Wound healing
Follow protocol:Wound healing
1.Wash slowly with PBS and add 3mL of serum-free medium. Select the spot for photographing with an inverted microscope, and mark it as 24h.
2024.08.19 Monday
Outline:
I. Wound Healing (Day3)
[Sirui Dong][Saiyu Luo] [Qiyu Tan][Huixin Liang][Yuetong Ge]
Detailed Experiments
II Wound healing
Follow protocol:Wound healing
1.Wash slowly with PBS and add 3mL of serum-free medium. Select the spot for photographing with an inverted microscope, and mark it as 48h.
Handwriting
2024.08.22 Thursday
Outline:
I. Preparation of LB medium [Qiyu Tan]
II.Paper work
Detailed Experiments
I. Preparation of LB medium
Follow the protocol:LB liquid medium
(Total volume = 1.3 L, 5 flasks for liquid medium, 3 flasks for solid medium)
1. Add the specified amounts of tryptone, NaCl, and yeast extract to a graduated container. Then, add RO H2O until the total volume reaches 1.3 liter.
2. Stir them at 440r/min on a magnetic stirrer, until the solution are completely dissolved.
3. Pour 200mL liquid into each 500mL conical flasks, pour 100mL liquid into each 250mL conical flasks. There are 5 large flasks(500mL), 3 small flasks(250mL).
4. Add 1.5g agarose powder to each small flasks. (Agar: Baygene, LOT: 222518)
5. Sterilize the medium by autoclave sterilizer for 20 min at 121℃.
IV. Prepare LB solid medium
1. Take antibiotics from -20℃ fridge.
2. Each antibiotic was added in 50μL to the corresponding conical flask, concentration of antibiotics is all 100 mg/mL.
3. Pour LB liquid medium to the plates, then cool them at room temperature.
4. Put these solid mediums to -20℃ fridge after sealing.
Handwriting
2024.08.23 Friday
Outline:
I.Transformation:miR-142-3p without lac-operator-pET-15b plasmid into BL21(DE3)
II.Cultivation:bacteria solution from oringinal tube [Saiyu Luo][Huixin Liang][Rui Yao]
⑬ miR-142-3p without lac-operator-pET-15b
Detailed Experiments
I. Transformation: plasmid ⑬ to BL21
Followed the protocol : Bacterial Transformation
Concentration of ⑬ : >=100ng/μL,
Heat shock at 42℃ for 90s, ice for 2 min
Add 500μL SOC medium per tube before shake for 1h
Plate transformation (200 μL) onto two 10 cm LB-Amp agar plate containing the appropriate antibiotic.
Invert the coated plate at 37℃ and cultivate overnight.
II. Culture bacteria overnight
III.Prepare SOC medium
Pack the SOC medium from 15mL centrifuge tube to 1.5mL EP tubes(Volume: 1mL)
Figure:
Description Picture
Basic information
Spread 200μL bacteria solution from the transformation on the plates
SOC:Store at -80℃
Handwriting
2024.08.24 Saturday
Outline:
I. Transformation:
⑭ / ⑰/ ⑭+⑰ →BL21(DE3) [Saiyu Luo][Huixin Liang][Yuetong Ge]
II. Culture and store bacteria [Saiyu Luo][Huixin Liang]
III. Plate streaking ⑬ bacteria [Saiyu Luo][Huixin Liang]
IV. LB liquid/solid medium [Qiyu Tan]
V.Preparation of competent cell[Huixin Liang]
⑭miR-142-3p without lac-operator-pCDFDuet-1
⑰H210&142 without lac-operator-pCOLADuet-1
VI:Seminar of experimental group with PI Wan 【All participants】
Detailed Experiments
I. Transformation: plasmid ⑬ to BL21
Followed the protocol Bacterial Transformation
Concentration of ⑭ / ⑰= 200ng/μL
Heat shock at 42℃ for 90s, ice for 2 min
Add 500μL SOC medium A/B and 1mL SOC medium C before shake for 1h
Invert the coated plate at 37℃ and cultivate overnight.
The result of plasmid ⑬ to BL21
Improve: Cover the plate with sponge and filter paper which are impregnated with RO H2O.
II. Culture bacteria overnight
Stored bacteria
III. Plate streaking and coating ⑬bacteria
Source: ⑬BL21(DE3)(8.23 shaking overnight) 14:00
IV. LB liquid/solid medium
Follow protocol:LB liquid medium
Prepare 1.6L in total (scale errors)
Solid LB medium: 100mL K+S; 100mL K;100mL A;100mL S
V. Preparation of preparing competent cells:⑬BL21(DE3)(8.23 shaking overnight)
Follow protocol: Preparation of competent cells
We prepare materials for the preparation of competent cells tomorrow
Weigh the drug: weigh 0.890g CaCl2
Sterilize 15mL and 50mL centrifuge tubes in one box, and sterilize 1.5mL EP tubes (more than 50 in two boxes).
Store at -20℃(1006)
Figure:
Description Picture
Plasmid information
Sunday/2024.08.25
Outline:
V. Transformation:
⑬/⑮/ ⑰/⑳/㉑→BL21(DE3)/DH5a/⑦-BL21 [Saiyu Luo][Huixin Liang][Yuetong Ge]
VI. Culture and store bacteria [Saiyu Luo][Huixin Liang][Yuetong Ge]
VII. Preparation of competent cell:⑬BL21(origin tube) [Huixin Liang][Yuetong Ge]
VIII. Maxiprep: ⑬BL21[Qiyu Tan][Rui Yao]
IX. Preparation of LB solid medium[Qiyu Tan][Rui Yao]
⑬ miR-142-3p without lac-operator-pET-15b
⑭miR-142-3p without lac-operator-pCDF-Duet
⑮ miR-210-3p without lac-operator-pET-15b
⑰ H210&142 without lac-operator-pCOLADuet-1
⑳H01 without lac operator pCOLADuet-1-EGFP
㉑H01 without lac operator pCOLADuet-lacZa
Detailed Experiments
I. Transformation: plasmid ⑬ to BL21
Follow protocol:Bacterial Transformation
Concentration of plasmid= 200ng/μL
Heat shock at 42℃ for 90s, ice for 2 min
Add 500μL SOC medium A/B and 1mL SOC medium C before shake for 1h
Invert the coated plate at 37℃ and cultivate overnight.
The result of transformation(8.24)
Improve: Cover the plate with sponge and filter paper which are impregnated with RO H2O.
II. Culture bacteria and store them
Stored bacteria
III. Preparation of competent cells:⑬BL21(DE3)(8.24 shaking overnight)
Follow protocol:Preparation of competent cells
1.5mL glycerol/CaCl2 dissolve precipitation, 50μL per tube.(22 tubes)
Store at -80 ℃ refrigerator
Figure:
Discription Picture
Transformation
Stored bacteria
IV.Maxiprep: ⑬BL21
To ensure the plasmids bacteria contained is correct and get more plasmids,we maxiprep for ⑬ from ⑬BL21 by Vigorous plasmid maxprep kit .
Follow protocol: Plasmid Maxiprep
From step 1 to step 4, the volume of reagent added is increased in equal proportions, multiplied from 500μL to 800μL
Results
V.Preparation of LB solid medium
preparation of LB solid medium followed the protocol
The number of each type of plate is shown in the table below
Handwriting
2024.08.26 Monday
Outline:
I. Store bacteria:
⑬-BL21,⑭→BL21(shake last night) [Yuetong Ge]
[20→7-BL21][17G→BL21][Huixin Liang]
II. Pick single colony and shake bacteria:
⑳→⑦-BL21,⑰→BL21,⑰+⑭→BL21[Yuetong Ge]
[20→7-BL21][13G→DH5α][15G→DH5α][21G→DH5α][Saiyu Luo]
III.Transformation:[13G][15G][20G][21G]→DH5α,[13G][15G][20G]→BL21 DE3 [Saiyu Luo][Huixin Liang][Yuetong Ge]
IV.Coat and streak plates[Huixin Liang][Rui Yao][Saiyu Luo]
V.Construct cell-free reaction system[Yuetong Ge][Sirui Dong]
VI.Cultivation:⑰G →BL21(DE3)[Huixin Liang][Rui Yao]
⑬ miR-142-3p without lac-operator-pET-15b
⑭miR-142-3p without lac-operator-pCDF-Duet
⑮ miR-210-3p without lac-operator-pET-15b⑰ H210&142 without lac-operator-pCOLADuet-1
⑳H01 without lac operator pCOLADuet-1-EGFP
㉑H01 without lac operator pCOLADuet-lacZaTransformation:[13G][15G][20G][21G]
Detailed Experiments
I. Store bacteria:⑬-BL21,⑭→BL21
Some of the bacteria solution shaken overnight become cloudy,so we stored them to prepare for the further experiments.
Figures
Description Pictures
Store the bacteria
The location of stored bacteria solution
II. Shake bacteria:⑳→⑦-BL21,⑰→BL21,⑰+⑭→BL21
Some of plates from transformation in 8.25 grew,so we pick single colonies from them and shake to prepare for cultivation and maxi prep.
We picked single colonies from plates and shake at 37℃,220rpm
⑰+⑭→BL21 didn't become cloudy after shaking for 7.5h,we suspected that the bacteria is not correct,so we didn't store the bacteria and stored it at 4℃
Figures
Description Pictures
Results of bacteria shaking(shake for 7.5h)
Pick single colonies and shake overnight
III. Transformation:[13G][15G][20G][21G]→DH5α,[13G][15G][20G]→BL21 DE3
Follow protocol: Bacterial Transformation
Concentration of plasmid =200ng/μL,
Heat shock at 42℃ for 90s,ice for 2min
Add 500μL SOC medium per tube before shake for 1h
Plate transformation(200μL) onto 10cm LB agar plate containing the appropriate antibiotic.
Invert the coated plate at 37℃ and cultivate overnight.
IV.Coat and streak plates
Some plates were suspected to have too many colonies to pick, so they were strewn or diluted and coated.
Improve: Cover the plate with sponge and filter paper which are impregnated with RO H2O.
Description Picture
Coating again
streak
V.Construct cell-free reaction system
1. Unfreeze all reagents (including A、B and RNase)
2. Add the reagents in order
3. Mix all reagents gently in order then centrifuge the mix.
4. Incubate at 37℃ for 2h
5. Stop the reaction by ice bathing and store at -20℃
Results
97.029 mg/mL protein are measured in the mix. But no fluorescence is observed.
VI.Cultivation:⑰G →BL21(DE3)
Handwriting
Tuesday /2024.08.27
Outline:
I.Transformation:⑯G→DH5α[Qiyu Tan]
II.Store bacteria [Saiyu Luo][Huixin Liang][Rui Yao][Yuetong Ge]
III.Shake bacteria [Saiyu Luo][Rui Yao]
IV.Preparation of LB medium [Qiyu Tan]
Detailed experiments
I.Transformation:⑯G→DH5α
Add 3μL plasmids into competent cells
Heat shock at 42℃for 90s
Add 500μL SOC medium per tube before shake for 1h( 220rpm, 37℃)
Spread 2 plates:
1) Spread 20μL transformation solution+180μL SOC medium mixture on the plate.
2) Spread 200μL transformation solution on the plate.
Place the coated plate at 37℃ for 30min. After the bacterial solution dried, invert and cultivate overnight.
Results(8.28 observed)
II.Store bacteria
Figure
III.Shake bacteria
We shake the bacteria⑬G→DH5α and ⑮G→DH5α in conical flask overnight to prepare for Maxi prep tomorrow, and pick single colonies ⑬G→BL21 from plate and shake for further experiments.
Shake at 37℃, 220rpm
Figures
Description Picture
⑬G→DH5α:
8.25 transformed,
8.26 picked
shake in conical flask
⑬G→DH5α:
8.25transformed,
8.27 picked
shake in conical flask
⑮G→DH5α:
8.25 transformed,
8.26 picked
shake in conical flask
⑮G→DH5α:
8.25transformed,
8.27 picked
shake in conical flask
⑬G→Bl21(DE3):
Pick 3 single from plates and shake
IV.Preparation of LB medium
Sterilization by microwave oven instead of autoclave, take LB liquid medium which have been sterilized, and pour it into 250mL flasks, then added agarose for 1.5g /100mL, heat for 1min in microwave, repeat this step.
Antibiotic: Amp, 7.20, concentration = 100 mg/mL.
Handwriting
Wednesday/2024.08.28
Outline:
I.Store bacteria [Qiyu Tan][Yuetong Ge]
II.Maxiprep and digestion:⑬⑮⑰BL21 [Yuxiao Qin]
III.Shake bacteria [Saiyu Luo]
IV.Transformation:⑱⑯㉒㉓⑱→DH5a[Sirui Dong][Huixin Liang]
V.IPTG induction:⑳→⑦-BL21 [Qiyu Tan]
VI.preparation of antibiotic,LB (solid) medium and plasmid[Saiyu Luo][Huixin Liang][Qiyu Tan][Yuetong Ge]
Detailed Experiments:
I.Store bacteria
Figure
Discription Picture
⑬G → BL21(DE3)
Result of shaking overnight
Stored bacteria solution.
II.Maxiprep and digestion:⑬⑮⑰
Follow protocol:Vigorous Plasmid Maxiprep
Results
Blank concentration = 0.07 ng/μL,
Plasmid concentrations are as follow:
Figures
Description Picture
Perform maxiprep on plasmid number ⑬, which is marked B on the bottle;
Perform maxiprep on plasmid number ⑰
Perform maxiprep on plasmid number ⑮, which is expanded the cultivation in 8.27 and 8.26
Perform maxiprep on plasmid number ⑬, which is expanded the cultivation in 8.27 and 8.26
Information of the plasmids
Analysis
Because the concentration was too high, we did an electrophoresis without digesting first to see if the result was correct. Meanwhile, the concentration of the ⑬B plasmid was unsatisfactory even after several Vigorous Maxipreps, so we suspected that the plasmid was a problem.
Single digestion
Follow protocol : Restriction Digest of Plasmid DNA
●We used enzyme HpaI with rCutSmartBuffer.
●We digest them at 37℃ overnight.
● The following volumes were added in the mixture:
Figures
Description Picture
Digest overnight
Agarose Gel Electrophoresis
III.Shake bacteria
Figures
Description Picture
⑳→⑦-BL21Bacteria solution came from this tube
㉑G→DH5α
⑭G→BL21
⑰G→BL21
⑰G→BL21
⑳G→BL21
IV.Transformation:⑱→DH5a
Follow protocol: Bacterial Transformation
Concentration of plasmid= 200ng/μL
Heat shock at 42℃ for 90s, ice for 2 min
Add 500μL SOC medium before shake for 1h
Coat the Kan plate with 50μL solution and 150μL LB ,then cultivate overnight.
Result:
V. IPTG induction:⑳→⑦-BL21
Induced bacteria which has co-transformed with (20) and (7) by IPTG for 4h, final concentration of IPTG is 0.1mM, 37℃, 180rpm.
Centrifuge bacteria solution under 8000rpm, 5min, and repeat this step until all the solution has been centrifuged completely.
VI. Preparation of LB solid medium,antibiotic and plates pouring
Follow protocol: LB liquid medium
We prepared 2L LB in total
The concentration of antibiotic is 100μg/ml
The types of plates are as follows
Preparation of Antibiotics:Amp,Kan
We prepared 5g Antibiotics(Amp ;Kan) in 50mL Centrifuge tubes
We volumed to 50mL with RO H2O
The concentration of antibiotic is 100mg/mL
To test the antibiotics,we set as follows:
Dissolve plasmid
Dissolve plasmid as follows
⑱G: H210&142 pCOLADuet-1 laczα
㉒G:H142-3p 11-12 pCOLADuet-1 EGFP
㉓G:H142-3p 8-15 pCOLADuet-1 EGFP
10000g centrifuge for 1min and add 20μL ddH2O dissolve it.
Handwriting:
Thursday/2024.08.29
Outline:
I.Transformation:㉔→BL21,㉖㉗㉙㉛㉜→DH5α; ㉟→BL21;⑯+⑰→⑬-BL21[Saiyu Luo][Huixin Liang][Yuetong Ge]
II.Shake and store bacteria: ⑬→BL21; ⑭⑮F [Huixin Liang][Yuetong Ge][Saiyu Luo]
III.Agarose gel electrophoresis: ⑬⑮⑰[Qiyu Tan]
IV.Digestion:⑬⑮⑰[Yuxiao Qin][Rui Yao]
V.Ultrasonic fragmentation of cells:⑳→⑦-BL21[Qiyu Tan]
VI.Dissolve plasmid:㉔㉖㉗㉙㉚㉛㉜㉟[Saiyu Luo]
Detailed experiments
I. Transformation:㉔→BL21,㉖㉗㉙㉛㉜→DH5α; ㉟→BL21;⑯+⑰→⑬-BL21
Followed the protocol Bacterial Transformation
Concentration of plasmid= 200ng/μL
Heat shock at 42℃ for 90s, ice for 2 min
Add 500μL SOC medium before shake for 1h
Coat the Kan plate with 50μL bacteria solution and 150μL LB ,Coat the Amp/Kan+Stc+Amp 200μL bacteria solutionwith hen cultivate overnight.
Improve: Cover the plate with sponge and filter paper which are impregnated with RO H2O.
Figure
Description Picture
All the plates we coated
II.Shake and store bacteria: ⑬→BL21; ⑭⑮F;⑰G→DH5α;㉒G→DH5α;㉓G→DH5α
Store bacteria
Shake bacteria overnight
The concentration of antibiotic:100μg/ml
Figure
Disciption Picture
Pick single colonies
III.Agarose gel electrophoresis: ⑬⑮⑰
Follow protocol: Agarose gel electrophoresis (unit:μL)
Results
IV.Digestion:⑬⑮⑰
According to there is no marker lane on the gel,we decided to digest the same plasmids again and run agarose gel again
Follow protocol : Restriction Digest of Plasmid DNA
●We digested them at 37℃ overnight.
●The following volumes were added in the mixture:
(Except 13B, other concentration are diluted to 1/40 of the original concentration)
P.S. “-0” represents none digestion , “-1” represents single digestion.
V.Ultrasonic fragmentation of cells:⑳→⑦-BL21
The sample has been induced by IPTG in 8.28.
Use Ultrasonic Homogenizer SCIENTZ-IID to extract the proteins
Measured the protein concentration through nano-100.
Results
Concentration of protein samples(unit: mg/mL)
Figure
Description Picture
Protein samples
A,B,C are all the same, from the same bacteria solution
VI.Dissolve plasmid:㉔㉖㉗㉙㉚㉛㉜㉟
10000rpm centrifuge for 1min and add 20μL ddH2O dissolve it.
Handwriting
Friday/2024.08.30
Outline:
I. The result of transformation(8.29) and single colony picking[Huixin Liang]
II. Coat the Plate :⑯+⑰→⑬-BL21 [Huixin Liang]
III. Shake bacteria for IPTG induction:⑳→BL21[Huixin Liang]
IV.Pick single colony and shake [Sirui Dong][Yueting Guo]
V.Store bacteria[Sirui Dong][Qiyu Tan]
VI.Construct the control group of cell-free system[Yuetong Ge][Qiyu Tan]
VII.Measure fluorescence intensity:⑳→⑦-BL21,NC- cell free,③+⑦-cell free [Yuetong Ge][Qiyu Tan]
VIII.Agarose gel electrophoresis[Rui Yao]
⑬ miR-142-3p without lac-operator-pET-15b
⑯ miR-210-3p without lac-operator-pCDFDuet-1
⑰ H210&142 without lac-operator-pCOLADuet-1
⑳ H01 without lac operator pCOLADuet-1-EGFP
㉙Optimization 2 H210&142 pCOLADuet-1-lacZa
㉜Optimization 5 H210&142 pCOLADuet-1-lacZa
㉟ lacZw pET-15b
Detailed Experiments
I.The result of transformation and single colony picking(8.29)
Results of transformation
Results of Single colony picking
II.Coat the Plate :⑯+⑰→⑬-BL21
According to the results of transformation this days ,we suspected that the plates with Kan may not be suitable for colony growth,so we coated plates with different antibiotics to verify our conjecture.
Note: shake the bacteria solution for 30minutes (8.29 store at 4℃).
Results(8.31 oberved)
Analysis
The two plasmids(⑯and⑰) co-transformation is unsuccessful.
II.Shake bacteria for IPTG induction:⑳→BL21
Note: shake at 80rpm.
III.Pick single colony and shake
IV.Store bacteria
V.Construct the control group of cell-free system
The systems are as follows(unit:μL):
Metal bath the positive control group at 37℃ for 2min,while store the negative control group at -20℃ directly without metal bath after mixing.
Results
VI.Measure fluorescence intensity:⑳→⑦-BL21,NC-cellfree,③+⑦-cellfree
Dilute the protein concentration to 1.8μg/μL
Add 100μL sample in each well
VII.Agarose gel electrophoresis:⑬⑮⑰
Follow protocol: Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The loading order and system are as follows
P. S. “-0” represents none digestion , “-1” represents single digestion.
Results
Handwriting
Saturday/2024.08.31
Outline:
I. Transformation:3 groups in total
miR-142 single arm group: ⑬/⑭/- +㉒㉓㉔→BL21[Qiyu Tan][Rui Yao]
miR-210 single arm group: ⑮/⑯/- +㉕㉖㉗→BL21[Yuxiao Qin][Sirui Dong]
double arm group:⑬⑭⑮⑯/⑬+⑯/⑭+⑮/- + ⑰G[Saiyu Luo]
II.Store bacteria:⑳→BL21 [Huixin Liang][Yuetong Ge][Saiyu Luo]
III.Ultrasonic disruption of bacteria solution:㉑→DH5α [Yueting Guo]
IV.Coomassie staining of the gel:NC;PC;③+⑦ [Huixin Liang][Yuetong Ge]
V.Preparation of plasmids [Sirui Dong][Yuxiao Qin]and LB [Qiyu Tan][Rui Yao]
③H01 without lac operator-pET-15b(pET-15b-H01-linker-EGFP)
⑦Input 01 without lac operator-pCDFDuet-1(pCDFDuet-input01)
⑳ H01 without lac operator pCOLADuet-1-EGFP
㉑ H01 without lac operator pCOLADuet-lacZa
Detailed Experiments
I. Transformation
Follow protocol:Bacterial Transformation
miR-142 single arm group: ⑬/⑭/- +㉒㉓㉔→BL21
Dilute the plasmid as follows
Mix 3μL of plasmids into 50μL of competent cells in a microcentrifuge tube.
Put the tubes back on ice for 1 minute after heat shock.
Add 500μL LB medium (without antibiotic) after 1min ice-bath.
Spread plates for 150μL bacteria-plasmid system.
miR-210 single arm group: ⑮/⑯/- +㉕㉖㉗→BL21
Dilute the plasmid as follows
Mix 3μL of plasmids into 50μL of competent cells in a Microcentrifuge tube.
Put the tubes back on ice for 1 minute after heat shock.
Add 500μL LB medium (without antibiotic) after 1min ice-bath.
Spread plates for 150μL transformation system.
Double arm group:⑬⑭⑮⑯/⑬+⑯/⑭+⑮/- + ⑰G
Concentration of plasmid=150ng/μL,2μL plasmid+50μL competent cell.
Heat shock at 42℃ for 90s,ice for 2min
Add 500mL LB medium per tube before shake for 1h
Plate transformation(150μL) onto 10cm LB agar plate containing the appropriate antibiotic.
Invert the coated plate at 37℃ and cultivate overnight.
Figure
Description Picture
Transformation of double arm group
II. Store bacteria ⑳→BL21
Figure
Description Picture
Store the bacteria
III. Ultrasonic disruption of bacteria ㉑→DH5a
Followed the protocol Ultrasonic disruption of bacteria
Take the supernatant and store it in three 3mL EP tubes (-80℃)and one 1mL EP tubes(-20℃)..
IV. Coomassie staining of the gel:NC;PC;③→⑦
Follow protocol: Coomassie staining of the gel
Note:
(1)Sample Preparation
Experimental protocol: System100μL,3.6μg/μL
Heat the sample for 15 minutes at 100°C to denature the proteins.
INSTRUCTION MANUAL(PURExpress® In Vitro Protein Synthesis )
Loading 2.5 µl of a reaction onto a mini protein gel and resolving by SDS-PAGE. Briefly, mix 2.5 µl of a PURExpress reaction with SDS gel loading buffer and H2O so the total volume is 12 µL.
Heat the sample for 2 minutes at 100°C to denature the proteins and load the sample onto a protein gel
(2) The loading order and loading quantity are shown in the following table
1XBuffer: 250μL 4X sample buffer + 750μL PBS
Marker: 10μLMarker+10μL1XBuffer
(3) 90V for stacking gel ,17min ; 135v for separating gel ,40min
(4) Wash the gel with destaining solution for 15minutes, 7times.
(5) Replace the destaining solution to RO H2O and continue decolourisation overnight
Primary result
V. Preparation of plasmids and LB
Preparation of plasmids
1.Lyophilize the original tube of plasmid into a centrifuge and centrifuge at 4℃, 10,000 xg for 1 minute.
2.Add 20μL of dd H20 to each primary tube plasmid.
Preparation of LB
Follow protocol: LB liquid medium
We totally prepared 12 plates with Amp,12 plates with Amp+Stc,12 plates with Amp+Kan
Handwriting
2024.09.01 Sunday
Outline:
I.Coat plates[Qiyu Tan][Rui Yao][Yuxiao Qin][Sirui Dong][Yueting Guo][Saiyu Luo]
II.Verify transformation[Sirui Dong]
III.Coomassie Brilliant blue elution [Huixin Liang][Yuetong Ge]
IV.Make competent cells:⑰→BL21,㉔→BL21 [Huixin Liang][Yuetong Ge]
V.Construct cell-free reaction system:⑳+⑦,㉟ [Huixin Liang][Yuetong Ge]
VI.Preparation of LB medium and plates pouring [Qiyu Tan][Rui Yao]
Detailed Experiments
I.Coat plates [Qiyu Tan][Rui Yao][Yuxiao Qin][Sirui Dong][Yueting Guo][Saiyu Luo]
Spread the bacteria solution from 8.31 transformation
The type of coated plates were as same as 8.31
Results(9.2 observed)
"+" indicates that this solid medium has formed a small number of colonies, and can pick up bacteria;
"++" indicates that this solid medium has formed a large number of colonies and can pick up bacteria;
"-" indicates that this solid medium has not formed colonies;
"#" indicates that the bacteria have grown, but didn't form colonies and cannot pick up bacteria;
"?" indicates that there are a few tiny dots, which couldn't affirm that these are colonies.
Verify the resistance of plates
Invert the coated plate at 37℃(in shaking table at 80 rpm) and cultivate overnight.
Results(9.2 observed)
Only the plate with Kan poured on 8.31 don't meet the expected results,so we discard the plates poured on 8.31
Other plates meet the expected results,so we continue to use them.
II.Verify transformation[Sirui Dong]
Shake at 37℃,80rpm overnight
Results
The results preliminarily prove that our transformation is successful
III.Coomassie Brilliant blue elution [Huixin Liang][Yuetong Ge]
Repeat the elution with the eluent three times for 15min each time.
Results
Analysis
1.Positive control show the band at about 20kD(about the right size),which means the PURE system is effective and it can express DHFR
2.③+⑦ group didn't show any band more than nagative control,to find the problem,we decided to construct cell free system with plasmid⑳+⑦.
IV.Make competent cells:⑰→BL21,㉔→BL21 [Huixin Liang][Yuetong Ge]
We shook ⑰→BL21,㉔→BL21,⑮-BL21,⑯-BL21 to make competent cells,but ⑮-BL21,⑯-BL21 didn't grow after shaking for 6h,so we only make ⑰→BL21,㉔→BL21 competent cells
Follow protocol:Preparation of competent cells
Add 1ml bacteria solution from 15ml tube stored at 4℃ to 200ml LB with antibiotic(concentration:100μg/ml) before making
We only use 100ml of bacteria solution per group to prepare competent cells
Figures
description Picture
shake 4 groups of bacteria to prepare for competent cells making
The bacteria solution added to 200ml LB
V.Construct cell-free reaction system:⑳+⑦,㉟ [Huixin Liang][Yuetong Ge]
The systems are as follows(unit:μL):
Store the solution at -20℃ after reaction
VI.Preparation of LB medium and plates pouring [Qiyu Tan][Rui Yao]
Follow protocol:LB liquid medium
Prepare 4 bottles for LB solid medium, 5 bottles for LB liquid medium in total
Pour 8 plates with Kan,11 plates with Amp+Stc,12 plates with Amp+Kan and 12 plates with Kan+Stc
2024.09.02 Saturday
Outline:
I. Detection of fluorescence[Yuetong Ge][Qiyu Tan]
II. CPRG color reaction [Huixin Liang][Yuetong Ge]
III. Single Colony Pick[Saiyu Luo][Huixin Liang][Yuetong Ge]
IV. Vigorous Maxiprep and digestion : ⑬A ;⑯(50+150);⑯(100)⑮9.1-I;⑮9.1-II;⑰BL21 [Yuxiao Qin][Rui Yao] [Yuetong Ge]
Detailed Experiments
I.Detection of fluorescence[Yuetong Ge][Qiyu Tan]
Add 100μL sample to each well
II.CPRG color reaction [Huixin Liang][Yuetong Ge]
We design the system followed by the technical@GBiosciences.com
Note:
Prepare 25X CPRG Substrate by adding 550µl of CPRG Assay Reaction Buffer into a vial of CPRG Substrate. To completely dissolve the substrate, mix the vial by vortexing for 20 seconds.
β-gal(0.05μg/μL):Weigh the 0.01g powder with 20mL (1X pH=7.3)PBS, dispense in 1.5 mL EP tubes.(Store at -20℃)
The result is satisfactory, the reaction is quick, the sample turns dark red immediately.
III.Pick Single Colony [Huixin Liang][Yuetong Ge][Saiyu Luo]
IV.Vigorous Maxiprep and digestion : ⑬A ;⑯(50+150);⑯(100)⑮9.1-I;⑮9.1-II;⑰BL21 [Yuxiao Qin][Rui Yao] [Yuetong Ge]
Follow protocol:Vigorous Plasmid Maxiprep
Results
Blank concentration:0.042ng/μL
Plasmid concentration were as follows(unit:ng/μL):
Follow protocol:Restriction Digest of Plasmid DNA
●We digest them at 37℃ for 1h.
●The following volumes were added in the mixture(units:μL):
Handwriting
2024.09.03 Monday
Outline:
I.Transformation:⑬+㉓,⑬+㉔,⑭+㉒,⑭+㉓[Qiyu Tan][Rui Yao]
II.Store bacteria [Huixin Liang]
III.Agarose gel electrophoresis[Yueting Guo]
IV.Preparation of LB medium[Yueting Guo]
Detailed Experiment:
I.Transformation:⑬+㉓,⑬+㉔,⑭+㉒,⑭+㉓[Qiyu Tan][Rui Yao]
Follow protocol:Transformation
Dilute the plasmid first
Put the tubes back on ice for 1 minute after heat shock.
Add 500μL LB medium (without antibiotic) after 1min ice-bath.
Spread 150μL bacteria solution on plates
Incubate plates in 37 °C Shaking incubator overnight
Results
II.Store bacteria [Huixin Liang][Saiyu Luo]
All the bacteria shaken yesterday(9.2,overnight) grew well,so we store them and store the rest of bacteria solution at 4℃
Corresponding 15mL tubes in order:
Line 1:
Line 2:
Line 3/4/5:
III.Agarose gel electrophoresis[Yueting Guo]
Follow protocol:Agarose gel electrophoresis
Use 1% agarose gel
Run at 135V for 40min
The loading order and system are as follows(unit:μL)
Results
-0 means it's not digested by enzyme
-1 means it's digested by single enzyme
Analysis
Incorrect bands appeared in the 16-II-single digestion may caused by the unfinished digestion
The reason why 15-I-NULL couldn't see clear bands was still unknown
The reason why 15-I-single digestion has totally wrong bands was still unknown
Sequencing results
⑬A,⑮II,⑯I are right
⑬A
⑮II
⑯I
IV.Preparation of LB medium[Yueting Guo]
Follow protocol:LB liquid medium
We prepare 2.5L LB in total
Handwriting
2024.09.04 Wednesday
Outline:
I.Shake the bacteria[Qiyu Tan]
II.Store the bacteria:⑬+㉓,⑬+㉔,⑭+㉒[Rui Yao]
III.IPTG induction[Sirui Dong]
IV.Coat the plates[Qiyu Tan]
Detailed Experiments:
I.Shake the bacteria[Qiyu Tan]
II.Store the bacteria:⑬+㉓,⑬+㉔,⑭+㉒[Rui Yao]
All the bacteria shaken tomorrow grew well,so we store them at -80℃and store the rest of bacteria solution at 4℃.
Figures
Note Pictures
Strain preservation
Location of stored bacteria
Location of rest of bacteria
III.IPTG induction[Sirui Dong]
After induction,we centrifuge the bacteria solution at 8000rpm,5min each time and store the precipitation at -80℃
IV.Coat the plates:⑭+㉓[Qiyu Tan]
Spread 150μL bacteria solution from 9.3 transformation on plates and incubate at 37℃
Handwriting
2024.09.05 Thursday
Outline:
I. Pick single colony:⑭+㉓G[Qiyu Tan]
II. Preparation of IPTG[Huixin Liang][Yuetong Ge]
III.Store bacteria:⑭+㉓G [Saiyu Luo]
IV.IPTG induction [Saiyu Luo]
V.Construct cellfree system:positive control,③+⑦(IPTG+/-) [Huixin Liang][Yuetong Ge]
VI.SDS-PAGE:NC(8.30),PC(8.30),PC(9.5),③+⑦(IPTG+/-)(9.5)[Huixin Liang]
VII.Ultrasonic disruption of bacteria:⑯+㉕.⑯+㉖,⑯+㉗,㉕[Yueting Guo]
VIII.Preparation of LB medium[Yueting Guo]
Detailed experiments
I.Pick single colony and shake bacteria:⑭+㉓G[Qiyu Tan]
II.Preparation of IPTG [Huixin Liang][Yuetong Ge]
We prepare 10ml IPTG (concentration=0.5M)in total
We use UP H2O to dissolve IPTG
III.Store bacteria:⑭+㉓G [Saiyu Luo]
IV.IPTG induction, [Saiyu Luo]
Shake for 4h before adding IPTG
Add 40μL IPTG(c=0.5M) to cultured bacteria solution and shake for another 4h
Centrifuge the bacteria solution at 5000rpm for 10min after IPTG induction and store the precipitation at -80℃
V.Construct cellfree system and fluorescence measurement:positive control,③+⑦(IPTG+/-) [Huixin Liang][Yuetong Ge]
Incubate them at 37℃ for 6h
Results
Fluorescence detection
Dilute the samples to 1.8μg/ul or 9μg/μL
Results
Analysis
IPTG induction and prolonged reaction time did not help protein expression
VI.SDS-PAGE:NC(8.30),PC(8.30),PC(9.5),③+⑦(IPTG+/-)(9.5)[Huixin Liang]
We forgot to lane marker so we decided to do it again tomorrow
VII.Ultrasonic disruption of bacteria:⑯+㉕.⑯+㉖,⑯+㉗,㉕.[Yueting Guo]
Follow protocol:Ultrasonic disruption of bacteria
Results
VIII.Preparation of LB medium[Yueting Guo]
Follow protocol:LB liquid medium
We prepare 2L LB in total
Handwriting
2024.09.06 Friday
Outline:
I.Ultrasonic disruption of bacteria and fluorescence measurement: ⑬+⑰,⑯+⑰,⑬+⑯+⑰[Saiyu Luo][Qiyu Tan]
II.IPTG induction [Sirui Dong][Yuxiao Qin]
III.Store bacteria[Sirui Dong][Yuxiao Qin]
IV.Construct the cell-free system:⑦+㉑+㉟; ㉞+⑦ [Huixin Liang][Yuetong Ge]
V.Coomassie staining of the gel:NC;PC1/2;㉟;③→⑦ IPTG +/-[Huixin Liang][Yuetong Ge]
Detailed experiments
I.Ultrasonic disruption of bacteria and Measure fluorescence:⑬+⑰→BL21,⑯+⑰→BL21,⑬+⑯+⑰→BL21 [Saiyu Luo][Qiyu Tan]
Ultrasonic disruption of bacteria
Follow protocol: Ultrasonic disruption of bacteria
Results(unit:mg/ml)
Fluorescence Measurement
Dilute the samples to 1.8μg/ul
Add 100μL sample to each hole
Results
Figure
description Picture
Centrifuge the bacteria solution
Get the solution of lysis
Measure the fluorescence
II.IPTG induction [Sirui Dong][Yuxiao Qin]
Add 40μL IPTG(c=0.5M) to bacteria solution as follows:
⑬+㉒,⑬+㉓,⑬+㉔,⑭+㉒fail to grow,so we plan to do it one more time.
We shook ⑯+㉕,⑯+㉖,⑯+㉗,㉖,㉗ again because of mistake
Shake for another 4h at 220rpm,37℃
III.Store bacteria[Sirui Dong][Yuxiao Qin]
IV.Construct the cell-free system:⑦+㉑+㉟; ㉞+⑦ [Huixin Liang][Yuetong Ge]
The systems are as follows(unit:μL):
The concentration of Plasmid:㉑/㉟/㉞=200ng/μL, ⑦=937ng/μL
Metal bath at 37 ° C for 6h
V.Coomassie staining of the gel:NC;PC;㉟;③→⑦ [Huixin Liang][Yuetong Ge]
(1)INSTRUCTION MANUAL(PURExpress® In Vitro Protein Synthesis )
Loading 2.5 µl of a reaction onto a mini protein gel and resolving by SDS-PAGE. Briefly, mix 2.5 µl of a PURExpress reaction with SDS gel loading buffer and H2O so the total volume is 12 µL.
Heat the sample for 2 minutes at 100°C to denature the proteins and load the sample onto a protein gel
(2) The loading order and loading quantity are shown in the following table
1XBuffer: 250μL 4X sample buffer + 750μL PBS
Marker: 10μLMarker+10μL1XBuffer
(3) 90V for stacking gel ,20min ; 135v for separating gel ,40min
(4) Wash the gel with destaining solution for 15minutes,2times
(5) Replace the destaining solution to RO H2O and continue decolourisation overnight
Figure
Description Picture
Make the sample of SDS-PAGE
Handwriting
2024.09.07 Saturday
Outline:
I.IPTG induction:⑰G→BL21(DE3) [Saiyu Luo]
II.Pick Single Colony [Saiyu Luo]
III.Coomassie Brilliant blue elution[Huixin Liang][Yuetong Ge]
IV.Preparation of LB[Yuxiao Qin][Rui Yao][Sirui Dong]
Detailed Experiments:
I. IPTG induction:⑰G→BL21(DE3)[Saiyu Luo]
Add 40μL IPTG to 200ml bacteria solution and shake for another 4h
Centrifuge the bacteria solution and store precipitation at -80℃
II. Single Colony Pick[Saiyu Luo]
Pick Single Colony as follows:
Figure
Description Picture
Picked the single colony and shook overnight at 37℃
III. Coomassie blue Eluent configuration and elution for Coomassie brilliant blue staining [Huixin Liang][Yuetong Ge]
Coomassie blue Eluent configuration
Follow protocol:Destaining solution
Mix well and store at room temperature
Coomassie Brilliant blue elution[Huixin Liang][Yuetong Ge]
Follow protocol:Coomassie staining of the gel
Results
IV.Preparation of LB[Yuxiao Qin][Rui Yao][Sirui Dong]
Followed the protocol:LB liquid medium
We prepare 2.4L LB in total
We use ⑯+⑰→BL21 to verify the LB medium is suitable for bacterial growth
Handwriting
2024.09.08 Sunday
Outline:
I.Ultrasonic disruption of bacteria and measurement of flurencense:⑰G→BL21(DE3) [Saiyu Luo]
II.IPTG induction:⑬+㉒G,⑬+㉓G,⑬+㉔G,⑭+㉒G,⑮+㉕G,⑮+㉖G,⑮+㉗G,㉖G,㉗G→BL21 [Saiyu Luo][Qiyu Tan]
III.Pick single colony and shake:⑬+㉒G[Qiyu Tan]
IV.Shake bacteria[Qiyu Tan]
Detailed experiments
I.Ultrasonic disruption of bacteria and measurement of flurencense:⑰G→BL21(DE3) [Saiyu Luo]
Ultrasonic disruption of bacteria
Follow protocol:Ultrasonic disruption of bacteria
Results
Measurement of flurencense
Follow protocol:Multi-Mode Microplate Reader
Dilute the sample to 1.8 μg/μL, total volume=100μL
Figure
Description Picture
Result of flurencense measureing
II.IPTG induction:⑬+㉒G,⑬+㉓G,⑬+㉔G,⑭+㉒G,⑮+㉕G,⑮+㉖G,⑮+㉗G,㉖G,㉗G→BL21
Shake at 220rpm for 4h before adding IPTG
Add 40μL IPTG(c=0.5M) to 200ml bacteria solution and shake for another 4h
Centrifuge the bacteria solution at 5000rpm for 10min,and store the precipitation at -80℃
Figure
description Picture
The result of shaking for 4h before adding IPTG
Centrifuge the bacteria solution after IPTG induction
III.Pick single colony and shake[Qiyu Tan]
Because we failed to cultivate the bacteria in IPTG induction,we picked single colonies again and shook to prepare for the experiments tomorrow.
Pick 3 single colonies from the plates coated on 9.1,add 5ml LB and shake at 220rpm overnight
IV.Shake bacteria[Qiyu Tan]
To prepare for the maxiprep, we shake bacteria in the conical flask overnight.
Handwriting
2024.09.09 Monday
Outline:
I.Construct cell-free reaction system:㉟ [Yuetong Ge]
II.Make sample of SDS-PAGE:㉟(cellfree),⑳→⑦-BL21,㉑→DH5α[Yuetong Ge]
III.Store bacteria[Yuetong Ge][Sirui Dong]
IV.Transformation:㉘/⑬+㉘/⑯+㉘/⑬+⑯+㉘→BL21[Saiyu Luo]
V.Ultrasonic disruption of bacteria:㉖,⑮+㉕,⑮+㉖,⑮+㉗[Sirui Dong]
VI.Vigorous Maxiprep:⑬+⑰,⑯+⑰,⑬+⑯+⑰[Qiyu Tan]
VII.Shake bacteria:Group of miR-210[Yuxiao Qin]
Detailed Experiments
I.Construct cell-free reaction system:㉟ [Yuetong Ge]
unit:μL
Incubate at 37℃ for 6h
Results
II.Make sample of SDS-PAGE:㉟(cellfree),⑳→⑦-BL21,㉑→DH5α[Yuetong Ge]
System(unit:μL)
Heated the sample at 100℃ for 3min and stored at -20℃ for SDS-PAGE tomorrow
III.Store bacteria[Yuetong Ge][Sirui Dong]
Follow protocol:Strain preservation
IV.Transformation:㉘/⑬+㉘/⑯+㉘/⑬+⑯+㉘→BL21[Saiyu Luo]
Heat shock at 42℃ for 90s,on ice for 2min
Add 500μL LB medium per tube before shake for 1h
Plate transformation(200μL) onto 10cm LB agar plate containing the appropriate antibiotic. (400μL for 13G+16G+28G)
Invert the coated plate at 37℃ overnight.
Results
Figure
Description Picture
The plasmid used for transformation
V.Ultrasonic disruption of bacteria and measurement of flurencense:㉖,⑮+㉕,⑮+㉖,⑮+㉗[Sirui Dong]
Ultrasonic disruption of bacteria
Follow protocol:Ultrasonic disruption of bacteria
Results
VI.Vigorous Maxiprep:⑬+⑰,⑯+⑰,⑬+⑯+⑰
Follow protocol:Vigorous Plasmid Maxiprep
Results
VII.Shake bacteria:group of miR-210
Handwriting
2024.09.10 Tuesday
Outline:
I.SDS-PAGE and coomassie bright blue staining of the gel:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree) [Huixin Liang]
II.Single colony pick:㉘→BL21,⑬+㉘→BL21 ,⑯+㉘→BL21[Saiyu Luo]
III.Shake the bacteria:⑬+㉓→BL21,⑬+㉔→BL21, ⑭+㉒→BL21,⑭+㉓→BL21[Qiyu Tan]
IV.Preparation of LB medium [Qiyu Tan]
V.Vigorous maxirprep:group of miR-210[Yuxiao Qin]
Detailed Experiments
I.SDS-PAGE and coomassie bright blue staining of the gel:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree) [Huixin Liang]
Follow protocol:Western Blot and Commassie staining of the gel
SDS-PAGE
The loading order and loading quantity are shown in the following table
1XBuffer: 250μL 4X sample buffer + 750μL PBS
Marker: 10μLMarker+10μL1XBuffer
90V for stacking gel ,20min ; 135v for separating gel ,50min
Coomassie bright blue staining of the gel
Stain the gel with coomassie briliant blue staining solution for 40min
Wash the gel with destaining solution for 15minutes,2times
Replace the destaining solution to RO H2O and continue decolourisation overnight
Figure
description Picture
The gel after staining
II.Single colony pick [Saiyu Luo]
Shake overnight at 220rpm,37℃
Figure
description Picture
Shake bacteria in 15ml tube
III.Shake the bacteria:⑬+㉓→BL21,⑬+㉔→BL21, ⑭+㉒→BL21,⑭+㉓→BL21[Qiyu Tan]
IV.Preparation of LB medium [Qiyu Tan]
Follow protocol:LB liquid medium
We prepare 2L LB in total
V.Vigorous maxirprep:group of miR-210[Yuxiao Qin]
Follow protocol:Vigorous Plasmid maxiprep
Results
Blank=0.061ng/μL
Figure
Description Picture
The plasmid we extracted
2024.09.11 Wednesday
Outline:
I.Primary part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree) [Huixin Liang][Yuetong Ge][Sirui Dong] [Qiyu Tan]
II.The result of Coomassie bright blue dye:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree)[Huixin Liang][Yuetong Ge]
III.Store the bacteria[Qiyu Tan]
IV.Shake the bacteria and IPTG induction[Qiyu Tan]
V.Digestion and Agarose gel electrophoresis:group of miR-210[Yuxiao Qin][Qyu Tan]
Detailed Experiments
I.Primary part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree)[Yuetong Ge] [Huixin Liang]
Followed the protocol:Western Blot
The loading order and system are shown in the following table
Run at 80V for stacking gel ,20min ;135v for separating gel ,45min
Prepration of milk and antibody [Sirui Dong] [Qiyu Tan]
Followed the protocol: Milk(5%) Primary antibody Secondary antibody
II.The result of Coomassie bright blue dye:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree)
[Yuetong Ge] [Huixin Liang]
There is no visible band of β-gal on the gel.
III.Store the bacteria[Qiyu Tan][Saiyu Luo]
IV.Shake the bacteria and IPTG induction[Qiyu Tan][Sirui Dong]
Shake before IPTG induction
Add 40μL IPTG (c=0.5M) to each conical flask and shake for another 4h
Centrifuge the bacteria solution at 5000rpm for 10min each time
Store the precipitation at -80℃
Shake in 15ml tubes
Shake before maxiprep
V.Digestion and Agarose gel electrophoresis:group of miR-210[Yuxiao Qin][Qyu Tan]
Follow protocol:Restriction Digest of Plasmid DNA Agarose gel electrophoresis
Digest at 37℃for 75min
The system of digestion is as follows
Use 1% agarose gel
Run at 135V for 40min
The loading sequence and systems are shown in the following table
Results
2024.09.12 Thursday
Outline:
I. Subsequent part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree)[Yueting Guo][Yuetong Ge]
II.Make sample of SDS-PAGE:㉟(cellfree),⑳→⑦-BL21(cellfree);⑳→⑦-BL21,㉑→DH5α;
[Huixin Liang] [Yuetong Ge]
III.Transformation :⑯+㉘→⑬-BL21(competent cell) [Saiyu Luo][Huixin Liang]
IV.Vigorous maxiprep and digestion[Yuxiao Qin][Rui Yao][Yuetong Ge]
V.Ultrasonic disruption of bacteria [Qiyu Tan]
VI.IPTG induction[Qiyu Tan]
VII.Preparation of LB medium[Qiyu Tan]
Detailed Experiments
I.Subsequent part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree)[Yuetong Ge][Yueting Guo]
Follow protocol:Western Blot
Results
112-116kD has light bands showing LacZω expression, but lacks a negative control only contain conponents of cell-free system, so we need to improve our experimental scheme.
II.Make sample of SDS-PAGE:㉟(cellfree),⑳→⑦-BL21(cellfree);⑳→⑦-BL21,㉑→DH5α;
[Yuetong Ge] [Huixin Liang]
Follow protocol:Western Blot
Heat the sample at 100℃ for 15min and store at -20℃ for WB tomorrow
III.Transformation:⑯+㉘→⑬-BL21,㉛/⑬+㉛/⑯+㉛→BL21[Saiyu Luo][Huixin Liang]
⑯+㉘→⑬-BL21[Saiyu Luo][Huixin Liang]
Follow protocol:Transformation
The concentration of the plasmid㉘=200ng/μL
Heat-shock at 42℃ for 90s
Add 500μL LB medium per tube before shake for 1h
Place the coated plate under 37℃ for 30min,invert and cultivate overnight
Transformation:㉛/⑬+㉛/⑯+㉛→BL21
Heat shock at 42℃ for 90s,on ice for 2min
Add 500μL LB medium per tube before shaking for 1h
Spread bacteria solution from transformation(200μL) on 10cm LB agar plate containing the appropriate antibiotic.
Invert the coated plate and cultivate at 37℃overnight.
IV.Vigorous maxiprep and digestion[Yuxiao Qin][Rui Yao][Yueton Ge]
Maxiprep
Follow protocol:Vigorous plasmid maxiprep
Results
blank concentration=0.009 ng/μL
Follow protocol:Restriction Digest of plasmid DNA
We used enzyme HpaI with rCutSmart Buffer.
We digest them at 37℃for 1h(A portion of the plasmid was digested at 37 degrees for one hour)
The system of digestion is as follows:
V.Ultrasonic disruption of bacteria [Qiyu Tan]
Follow protocol:Ultrasonic disruption of bacteria
Results
VI.IPTG induction:㉘,⑬+㉘,⑯+㉘→BL21[Qiyu Tan]
Shake 4h before adding IPTG
Add 40μL IPTG(c=0.4M) to each group and shake for another 4h
VII.Preparation of LB medium[Qiyu Tan]
Follow protocol:LB liquid medium
We prepare 2.4L LB in total
2024.09.13 Friday
Outline:
I. Primary part of WB: ⑳→⑦-BL21,㉑→DH5α,㉟(cellfree);⑳→⑦-BL21(cellfree)
[Huixin Liang][Yuetong Ge]
II.Single Colony Pick [Saiyu Luo][Yuetong Ge]
III.Agarose Gel Electrophoresis [Saiyu Luo][Yuetong Ge]
IV.Plates pouring and preparation of Running buffer [Yuetong Ge]
Detailed Experiments:
I.Primary part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree),⑳→⑦-BL21(cellfree) [Yuetong Ge][Huixin Liang]
Followed the protocol:Western Blot
The loading order and system are shown in the following table
80V for stacking gel, 15min ;
135v for separating gel , 50min
Primary antibody:(1)-His-tag;(2)-LacZ polyclonal antibody
II.Single Colony Pick [Saiyu Luo][Yuetong Ge]
Shake overnight at 220rpm,37℃
Figure
Description Picture
Pick the single colony from these plates
III.Agarose Gel Electrophoresis [Saiyu Luo][Yuetong Ge]
Follow protocol:Agarose Gel Electrophoresis
Use 1% agarose gel
4μL 6xloading buffer was added in each sample
Run the gel at 135V for 40min
The loading order and system are shown in the following table(unit:μL)
Results
IV.Plates pouring and preparation of Running buffer [Yuetong Ge]
Follow protocol:LB liquid medium and Running buffer(10x)
We pour 3 types of plates:Kan+Amp+Stc,Amp+Stc,Amp
We prepare 1L Running buffer in total
2024.09.14 Saturday
Outline:
I.Transformation:⑬+⑯+㉘→BL21,⑬+⑯+㉛→BL21 [Saiyu Luo]
II.Ultrasonic disruption of bacteria and Measurement by Multi-mode Microplate Reader [Saiyu Luo]
III.Shake bacteria[Rui Yao]
IV.Subsequent part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree),⑳→⑦(cellfree) [Yueting Guo][Yuetong Ge]
Detailed experiments:
I.Transformation[Saiyu Luo]
Heat shock at 42℃ for 90s,on ice for 2min
Add 500μL LB medium per tube before shake for 1h
Plate transformation(200μL) onto 10cm LB agar plate containing the appropriate antibiotic.
Invert the coated plate at 37℃ and cultivate overnight.
Plasmid concentration are as follows
System of transformation
II.Ultrasonic disruption of bacteria and Measurement by Multi-mode Microplate Reader [Saiyu Luo]
Ultrasonic disruption of bacteria
Follow protocol:Ultrasonic disruption of bacteria
Results
Fluorescence measurement
Dilute all protein samples to 1.8 μg/μL by PBS, and add 100μL in each hole to measure EGFP fluorescence.
PMT Gain:Medium High
Results
Figure
description Picture
Get the bacterial lysate
Measure the fluorescence
III.Shake bacteria[Rui Yao]
Shake at 220rpm,37℃
Figure
description Picture
Add antibiotic to LB medium
Shake the bacteria in 15ml tube
IV.Subsequent part of WB:⑳→⑦-BL21,㉑→DH5α,㉟(cellfree),⑳→⑦(cellfree) [Yueting Guo][Yuetong Ge]
Follow protocol:Western Blot
Results
Primary antibody:LacZ Polyclonal antibody
112-116kD has light bands showing LacZω expression, but the negative control only containing conponents of cell-free system ,expresses the same.
Primary antibody:His-tag antibody
No specific LacZω-expressing bands were found
Negative control had multiple bands expressing with LacZω
Sunday/2024.09.15
Outline:
I.Construct cell-free system:㉟; ④;PC [Huixin Liang][Yuetong Ge]
II.Coomassie staining of the gel:㉟; ④;PC [Huixin Liang][Yuetong Ge]
III.Trasformation:㉒,㉓,㉔,⑬+㉒→BL21[Qiyu Tan][Rui Yao][Sirui Dong]
IV.Preparation of LB medium[Qiyu Tan][Rui Yao]
V.Coat Plate:⑬+⑯+㉘→BL21[Qiyu Tan]
Detailed Experiments:
I. Construct the control group of cell-free system
The systems are as follows(unit:μL):
The concentration of plasmid:㉟=200ng/μL, ④=950ng/μL
Metal bath at 37 ° C for 5h
II. Coomassie staining of the gel:㉟; ④;PC
Follow protocol:Coomassie staining of the gel
Sample Preparation
Experimental protocol: System48μL,9μg/μL
Heat the sample for 15 minutes at 100°C to denature the proteins.
The loading order and system are as follows:
III.Trasformation:㉒,㉓,㉔,⑬+㉒→BL21[Qiyu Tan][Rui Yao][Sirui Dong]
Follow Protocol:Bacterial Transformation
The concentration of plasmid is 100ng/μL
Put the tubes back on ice for 1 minute after heat shock.
Add 500μL LB medium (without antibiotic) after 1min ice-bath.
IV.Preparation of LB medium[Qiyu Tan][Rui Yao]
Follow protocol:LB liquid medium
We prepare 1.4L LB in total
V.Coat Plate:⑬+⑯+㉘→BL21[Qiyu Tan]
We use bacteria solution from 9.14 transformation to coat plates again
2024.09.16 Monday
Outline:
I. Primary part of WB:㉟; ④;PC [Huixin Liang][Yuetong Ge]
II. RNA extraction in vitro ⑦;⒂-II [Huixin Liang][Yuetong Ge]
III.Shake bacteria and IPTG induction [Sirui Dong][Qiyu Tan][Rui Yao][Saiyu Luo]
IV.Preparation of LB medium [Rui Yao][Qiyu Tan]
V.Shake bacteria:group of miR-142[Qiyu Tan][Rui Yao]
Detailed Experiments
I.Primary part of WB:㉟(cellfree) ; ④(cellfree) ;PC(cellfree) [Yuetong Ge][Yueting Guo]
Follow the protocol:Western Blot
The loading order and systems are shown in the following table
50μL Marker configuration :25μL Marker+25μL 1xBuffer
80V for stacking gel, 20min
135v for separating gel , 50min
Primary antibody:(1)-His-tag;(2)-LacZ polyclonal antibody
II. RNA extraction in vitro
1. DNA template preparation:Single enzyme digestion
In order to obtain a specific length RNA, the plasmid must be completely linearized.
Digest at 37℃ for 2h
⑦: Split into five systems(20 μL per system)
2. In vitro RNA transcription
(1)Thawing reagents:
Centrifuge the T7 RNA Polymerase Mix briefly and place on ice. Thaw 10× Transcription Buffer and ribonucleotides (ATP, CTP, GTP, UTP), mix and centrifuge to the bottom of the tube, place 10× Transcription Buffer at room temperature, and place 4 types of ribonucleotides on ice.
(2) Assembly transcription reaction at room temperature
Prepare the reaction system according to the following system:
Note:
1. The reaction is configured at room temperature. Since 10× Transcription Buffer contains spermidine, the concentration of spermidine too high will cause DNA template precipitation at low temperature.
2. Short transcript (<100 nt), 2 µg template can be used, transcription time increased to 4-8 hs.
3. For long transcripts (>1000 nt), recommended to use linearized plasmid templates for transcription.
4. Perform the reaction in a PCR machine with the hot lid open to prevent the reaction solution from evaporating for a long time.
5. The reaction product may have a white precipitate. This is free pyrophosphate and magnesium ions produce the magnesium
pyrophosphate in the reaction, won't affect the subsequent experiments. You can add some EDTA to clear it. If the addition of
EDTA affects subsequent experiments, the supernatant can also be recovered by centrifugation.
6. The reagents and containers must without RNase contamination.
(3) Incubate at 37°C for 4 hours
(4) Before purification, add 80μL RNase free H2O to dilute the product to 100 μL,
3. Product purification
Follow protocol: EasyPure® RNA Kit
(1) Measure the volume of the flow-through accurately andtransfer it to a clean 1.5 ml RNase-free centrifuge tube. Add 1.25 volumes (125μL)of absolute ethanol to the tube .Some precipitates may appear at this moment. Invert the tubegently to mix well.
(2) Add all the solution and precipitates into the miRNA Spn Column. Centrifuge at 12,000xg for 30 seconds at roomtemperature, and discard the flow-through (If the volumof the mixture is larger than the maximum sample volume thecolumn can process, repeat this step until all the mixturhas been loaded)
(3) Add 500 μL ofWB10 (check to make sure that absolutethanol has been added prior to use) into the spin column. Centrifugethe flow-through.at 12,000xg for 30 seconds at room temperature. Discar
(4) Repeat step(3)once.
(5) Centrifuge at 12,000 xg for 2 minutes at room temperatre to remove ethanol residue thoroughly.
(6) Place the miRNA spin column into a 1.5 mL RNase-freetube. Add 30 μL of RNase-free Water to the center of the spincolumn matrix and incubate at room temperature for 1 nlinute.
(7) Centrifuge at 12,000xg for 1 minute to elute miRNA.
(8) Store the isolated miRNA at -80°C
4. RNA quantification
The concentration of RNA:
5. RNA size and quality detection
Agarose electrophoresis
In order to determine the size, integrity and quality of RNA, agarose gel electrophoresis or polyacrylamide gel electrophoresis is required for detection.
III.Shake bacteria and IPTG induction [Sirui Dong][Qiyu Tan][Rui Yao][Saiyu Luo]
For the group waiting for IPTG induction,add 40μL IPTG(c=0.5M)into each conical flask and shake at 37℃,180rpm for another 4h
Centrifuge the bacteria solution after IPTG induction and store the precipitation at -80℃
IV.Preparation of LB medium [Rui Yao][Qiyu Tan]
Follow protocol:LB liquid medium
We prepare 1.1L LB medium in total
V.Shake bacteria:group of miR-142[Qiyu Tan][Rui Yao]
2024.09.17 Tuesday
Outline:
I.Vigorous maxiprep, digestion and agarose gel electrophoresis:㉘-2 ;㉛[Rui Yao][Yuxiao Qin]
II. IPTG induction:㉒,㉓,㉔,⑬+㉒,㉗[Qiyu Tan][Sirui Dong]
III.Ultrasonic disruption of bacteria and fluorescence measurement:⑬+㉛,⑯+㉛,㉛[Qiyu Tan]
IV.Store bacteria:㉒,㉓,㉔,㉗,⑬+㉒,⑬+⑯+㉛,⑬+⑯+㉘[Qiyu Tan]
V.Agarose gel electrophoresis of RNA:⑦,⑮,control,positive control[Huixin Liang][Yuetong Ge]
VI.RNA extraction in vitro:③,㉗,㉞ [Huixin Liang][Yuetong Ge]
VII.Subsequent part of WB and coomassie staining of the gel:PC,④,㉟[Huixin Liang][Yuetong Ge]
VIII.Vigorous maxiprep:group of miR-142[Qiyu Tan]
IX.Shake bacteria[Qiyu Tan]
Detailed experiments:
I.Vigorous maxiprep, digestion and agarose gel electrophoresis:㉘-2 ;㉛[Rui Yao][Yuxiao Qin]
Vigorous maxiprep
Follow protocol:Vigorous plasmid maxiprep
Results
blank concentration = 0.059 ng/μL,
plasmid concentrations are as follow:
Digestion
Follow protocol:Restriction Digest of Plasmid DNA
We used enzyme HpaI with rCutSmartBuffer.
We digest them at 37℃ for 1h.(A portion of the plasmid was digested at 37 degrees for one hour)
The following volumes were added in the mixture:
The system are as follows
Agarose gel electrophoresis
Follow protocol:Agarose gel electrophoresis
Results
description Picture
Store the plasmid
Digest at 37℃
The sample of agarose gel electrophoresis
II. IPTG induction:㉒,㉓,㉔,⑬+㉒,㉗,⑳[Qiyu Tan][Sirui Dong]
Shake at 220rpm for 4h before adding IPTG
Shake for another 4h after adding IPTG
Centriduge the bacteria solution after IPTG induction and store the precipitation at -80℃
III.Ultrasonic disruption of bacteria and fluorescence measurement:⑬+㉛,⑯+㉛,㉛[Qiyu Tan]
Ultrasonic disruption of bacteria
Follow protocol:Ultrasonic disruption of bacteria
Results
Blank:Abs=0.002,c=0.043
Fluorescence mesurement
Follow protocol:Multi-Mode Microplate Reader
Dilute all the protein samples to 1.8 μg/μL to measure fluorescence
Figure
description Picture
Measure the fluorescence
IV.Store bacteria:㉒,㉓,㉔,㉗,⑬+㉒,⑬+⑯+㉛,⑬+⑯+㉘[Qiyu Tan]
V. Agarose gel electrophoresis of RNA:⑦,⑮,control,positive control[Huixin Liang][Yuetong Ge]
Follow protocol:Agarose gel electrophoresis of RNA
Loading order is as follows:(unit:μL)
Run at 110V for 40min
We don't have marker so we use cr-21-5p as a marker
Result
Analysis
Both of the control have clear band,which means our operation is correct
⑦ has no band,Probably because the plasmids used(Tiangen maxiprep) are impure
⑮ has clear band ,which means the transcription in vitro is successful.
VI.RNA extraction in vitro:③,㉗,㉞ [Huixin Liang][Yuetong Ge]
Follow protocol: EasyPure® RNA Kit
Results
Store the RNA at -80℃
VII.Subsequent part of WB and coomassie staining of the gel:PC,④,㉟[Huixin Liang][Yuetong Ge]
Follow protocol:Western Blot
Results
VIII.Vigorous maxiprep:group of miR-142[Qiyu Tan]
Follow protocol:Vigorous Plasmid Maxiprep
Results
IX.Shake bacteria[Qiyu Tan]
2024.09.18 Wednesday
Outline:
I.Agarose gel electrophoresis:⑦(TIANGEN) [Huixin Liang][Yuetong Ge]
II.RNA extraction in vitro -I DNA template preparation:⑦(original tube); ⑭(original tube) [Huixin Liang][Yuetong Ge]
III.Agarose Gel Electrophoresis [Saiyu Luo]
IV.Ultrasonic disruption of bacteria and fluorescence measurement [Sirui Dong]
V.IPTG induction [Sirui Dong]
VI.Preparation of LB medium [Sirui Dong]
VII.Digestion and Agarose gel electrophoresis:group of miR-142[Qiyu Tan]
VIII.Vigorous maxiprep [Qiyu Tan]
Detailed Experiments
I.Agarose gel electrophoresis:⑦(TIAN GEN)
Follow the protocol:Agarose Gel Electrophoresis
We suspected that less RNA might be due to incomplete digestion, so we run agarose gel to verify the effectiveness of the digestion system
Digested plasmid samples were loaded into the gel as the table below.
The concentration of the gel is 1%.
4μL of 6X loading buffer were added to all samples.
The loading order and system are shown in the following table
Analysis of results
Template DNA is pure
The enzyme XbaI and the reaction system works.
II. RNA extraction in vitro
1. DNA template preparation:Single enzyme digestion(10μL system)
In order to obtain a specific length RNA, the plasmid must be completely linearized.
Digest at 37℃ for 2h
III.Agarose Gel Electrophoresis
Use 1% agarose gel
Heating until melt completely. Add 20μL Gelstain.
Run at 135V for 40min.
-0 means it's not digested by enzyme
-1 means it's digested by single enzyme
IV.Ultrasonic disruption of bacteria and fluorescence measurement [Sirui Dong]
Ultrasonic disruption of bacteria
Follow protocol:Ultrasonic disruption of bacteria
Results
Fluorescence measurement
We measure the fluorescence of ㉗→BL21 with other protein in the group of miR-210
Results
V.IPTG induction :⑳[Sirui Dong]
2 tubes in total
7.5ml bacteria solution in each tube
Shake 4h before adding IPTG,and shake for another 4h after adding
Centrifuge the bacteria solution after IPTG induction and store the precipitation at -80℃
VI.Preparation of LB medium [Sirui Dong]
Follow protocol:LB liquid medium
We prepare 3L LB in total
VII.Digestion and Agarose gel electrophoresis:group of miR-142[Qiyu Tan]
Follow protocol:Restriction Digest of Plasmid DNA Agarose gel electrophoresis
Digest at 37℃ for 75min
The system of digestion is as follows
Use 1% agarose gel
Run at 135V for 40min
Results
VIII.Vigorous maxiprep [Qiyu Tan]
Follow protocol:Vigorous Plasmid Maxiprep
Results
2024.09.19 Thursday
Outline:
I.Ultrasonic disruption of bacteria and fluorescence measurement [Rui Yao][Yuxiao Qin][Qiyu Tan]
II.Cell-free system:⑦+㉞[Yuetong Ge][Huixin Liang]
III.Digestion and Agarose gel electrophoresis:group of double-arm LIRA1 and group of double-arm LIRA2[Qiyu Tan]
Detailed Experiments
I.Ultrasonic disruption of bacteria and fluorescence measurement [Rui Yao][Yuxiao Qin][Qiyu Tan]
Ultrasonic disruption of bacteria
Follow protocol:Ultrasonic disruption of bacteria
Results
Fluorescence measurement
We measure the fluorescence of ㉓→BL21 with other protein in the group of miR-210
Results
Because we forgot to mix the solution well,so the protein concentration in the solution was not uniform,and the result had a large error.
II.Cell-free system:⑦+㉞[Yuetong Ge][Huixin Liang]
Build the system according to the following table(unit:μL)
Incubate at 37 ° C for 6h
Use 25μL β-gal as positive control
Add 0.5μL CPRG(c=30ug/μL) to each system
Results
III.Digestion and Agarose gel electrophoresis:group of double-arm LIRA1 and group of double-arm LIRA2[Qiyu Tan]
Follow protocol:Restriction Digest of Plasmid DNA Agarose gel electrophoresis
Digest at 37℃ for 75min
The systems of digestion are as follows
LIRA1
LIRA2
Use 1% agarose gel
Run at 135V for 40min
LIRA1
LIRA2
Results
2024.09.20 Thursday
Outline:
I.IPTG induction:⑬+⑯+㉘,⑬+⑯+㉛ [Rui Yao][Yuxiao Qin][Qiyu Tan]
II.Fluorescence measurement:the group of miR-142[Qiyu Tan]
III.Digestion and Agarose gel electrophoresis:group of double-arm LIRA5[Qiyu Tan]
IV.RNA extraction in vitro:⑭ [Huixin Liang][Yuetong Ge]
Detailed Experiments
I.IPTG induction:⑬+⑯+㉘,⑬+⑯+㉛ [Rui Yao][Yuxiao Qin][Qiyu Tan]
Add 40μL IPTG(c=0.5M) to each conical flask
II.Fluorescence measurement:the group of miR-142[Qiyu Tan]
We measure the fluorescence of ㉓→BL21 with other protein in the group of miR-210
Results
III.Digestion and Agarose gel electrophoresis:group of double-arm LIRA5[Qiyu Tan]
Follow protocol:Restriction Digest of Plasmid DNA Agarose gel electrophoresis
Digest at 37℃ for 75min
The system of digestion is as follows
Use 1% agarose gel
Run at 135V for 40min
Results
IV.RNA extraction in vitro:⑭ [Huixin Liang][Yuetong Ge]
Follow protocol:RNA extraction in vitro
Results
2024.09.21 Friday
Outline:
I.Ultrasonic disruption of bacteria and fluorescence measurement:⑬+⑯+㉘,⑬+⑯+㉛
II.Cell-free system:Double-arm LIRA5[Huixin Liang][Yuetong Ge]
Detailed Experiments
I.Ultrasonic disruption of bacteria and fluorescence measurement:⑬+⑯+㉘,⑬+⑯+㉛
Follow protocol:Ultrasonic disruption of bacteria
Results
Fluorescence measurement
Dilute all protein samples to 1.8 μg/μL by PBS, and add 100μL to each hole to measure EGFP fluorescence.
Results
II.Cell-free system:Double-arm LIRA5[Huixin Liang][Yuetong Ge]
The concentration of RNA is 20uM
We construct the cell-free system according to the table below(unit:μL)
Add 0.5μL CPRG(c=300μg/μL) to each system
Use 25ul PBS+0.5μL 25xCPRG as a positive control
Results
2024.01.17 Wednesday
The First iGEM Team Meeting
After the establishment of the 2024 CJUH-JLU-China team, the members of the Model team (Haoyang Liu , Xinhao Liao , Qing Ren , Yiting Zhao) met for the first time and participated in the first iGEM team meeting. Everyone introduced their familiar model, programming language, and algorithms. We listened to the individual project ideas of the experiment group and got a general idea about the project. Since the topic has not yet been decided, the Model team decided to learn about the models and algorithms that may be used, and to learn from the excellent modeling examples of iGEM in the past and try to reproduce them.
2024.01.21 Sunday
1st model group meeting
Due to the winter holiday, the first model inside meeting was held in the form of an online meeting, and everyone put forward their own interests in the direction.
Yiting Zhao learned about the work of the Virginia team at iGEM last year, and introduced the principles of the kit and the modeling principles.
Haoyang Liu tried to learn from the NCBI and TCGA databases, explaining the data sources, data trustworthiness and how to search them.
Qing Ren learned how to draw images with programming language and tried to reproduce images from previous iGEM projects.
Xinhao Liao learned how to build a web page.
2024.01.26 Friday
2nd model group meeting
In order to better cooperate with other groups and clarify the responsibilities of our group, we contacted Tuo Wang, the leader of the previous model, asked him to pass on some experience to us.
Tuo Wang explained to us the various problems encountered by the Model group in the last competition, and explained the final research results to us. We took advantage of this opportunity to get a better understanding of the task of the Model group.
2024.01.31 Wednesday
3rd model group meeting
This is the third model inside meeting , and the four team members had completed their tasks excellently, and in this group meeting, they shared their learning and reproduction results in details.
Qing Ren learned from the AutoDock software and constructed a protein model.
Yiting Zhao explained the application of diffusion model in kits and drug delivery, and introduced the model idea of HUST in 2022.
Xinhao Liao and Haoyang Liu explained the extraction, processing and differential analysis of miRNA data in the database.
2024.02.18 Sunday
Progress acknowledgment and collaboration suggestion between Model and Exp group on Heartecho project
For the first time, the Model group reported the progress of the work with our PI , and after listening to the reports, our PI Xin Hu and Youzhong Wan affirmed the progress of our group. They suggested that the Model group communicate with the exp group in the early stage of the next week's work, and suggested that the Model group first cooperate with the exp group Zhongyu Chen's Heartecho project.
2024.02.24 Saturday
4th model group meeting
In the 4th model inside meeting ,members continued to share the progress of the week's work.
Yiting Zhao studied the technical details of the HUST model, focusing on the diffusion model, and tried to write code to simulate the diffusion process.
Qing Ren explained the code and parameter adjustment of the convolutional neural network, and tried to establish a prediction model for the data set.
Xinhao Liao disassembled and studied the structure of last year's web page, and completed the protein modeling attempt of HDOCK software with Qing Ren together .
Haoyang Liu tried to construct a miRNA gene regulatory network and analyze gene enrichment and survival.
2024.03.03 Sunday
Delegate and clarify tasks
We participated in the first all-staff meeting of the new semester. We listened to the report of the exp group in full, and then explained the progress of the model group to the PI and the students of the exp group.
At the meeting, the exp group proposed to design a LIRA structure that could detect miRNA, so the members of the model group were divided into two groups.
Group A : Haoyang Liu and Xinhao Liao, who continue to be responsible for the screening work.
Group B: Yiting Zhao and Qing Ren, who will inquire about software that can meet the requirements of the experimental group.
2024.03.17 Sunday
Find databases and learn RNA design software
In this meeting, the Model Group presented the results of the previous week.
Group A: Haoyang Liu and Xinhao Liao cross-compared the datasets of various related heart diseases (heart failure, myocardial infarction, coronary heart disease, hypertension) in the GEO database and conducted difference analysis, sorted according to the Fold Change value, and selected the top 20 miRNAs for cross-comparison with various tumor databases, but did not find miRNAs with good performance.
Group B: Yiting Zhao and Qing Ren studied NUPACK software and RNA Strucure software, and tried to reproduce the single-arm structure of H01 and H05 in the literature.
2024.03.24 Sunday
Search the database and start designing
In this presentation, members continued to report on the progress of the week's work.
Group A: Haoyang Liu and Xinhao Liao expanded the search scope of the GEO database dataset and found GSE104015 and GSE136547. We identified the hsa-miR-223-3p and hsa-miR-18a-5p in the two datasets as the target miRNAs. Model group recommended these two target miRNA to exp group at the end of the meeting after discussion with PI.
Group B: Yiting Zhao and Qing Ren continued to simulate the secondary structure of LIRA and started to design the LIRA structure starting codon and RBS details with Zhongyu Chen.
2024.03.31 Sunday
Identify the miRNAs and start designing the game
Students in exp group conducted a literature search for our results, and shared results with us on the meeting. They decided to expand the search scope and continue searching works. Model group began to design single-arm structure using miR-223-3p and miR-18a-5p provisionally during the time waiting for exp group's result to confirm our conclusions.
Qing Ren, Yiting Zhao, and Haoyang Liu were responsible for designing part. We start from exploring the structure of miRNA themselves.
Xinhao Liao began to be responsible for docking with the game design of the students in the wiki group.
2024.04.06 Saturday
Find problems and try to find solutions
In this meeting, model group tried to investigate the proper position to insert complementary sequence of target miRNA into single-arm structure, and proper parameters. However, we met some difficulties, small changes in position can have a huge impact on secondary structure. We turn to PI for help in the meeting. PI suggested us to cooperate with exp to find a more stable structure.
2024.04.14 Sunday
Conduct single-arm open-loop simulation and preliminary presentation of the web page
In this meeting, we reported our progress on design, and attempts in open loop simulation.
Qing Ren, Haoyang Liu and Yiting Zhao successfully found a feasible method to construct a stable single-arm LIRA. After that, we use it to do the open-loop simulation and didn't get expected result. We think the problem existed in base pairs after discussion with exp group.
Xinhao Liao presented the simulated renderings of the web pages constructed based on the wiki drawings.
2024.04.21 Sunday
Double-arm gate design and search for new miRNA screening methods
We organized our miRNA differential analysis results and conducted literature review on finding the evidence to support the corresponding miRNA effect on certain diseases.
Qing Ren attempted to further analyze the double-arm gate structure by introducing the influence of different orders of adding miRNAs on the hybridization results. Although we have constructed a relatively stable RNA open-loop simulation system, there are still some unstable factors (mismatched bases) occurring during its operation, it was found that when the two miRNAs were not added simultaneously, it would cause changes in the results, which require further improvement and optimization.
Xinhao Liao, Haoyang Liu and Yiting Zhao discussed with our PI Youzhong Wan and Xin Hu, and the Model group decided to reconsider the rationality of selecting the two miRNA indicators and attempt to collaborate with the exp group to find support from epidemiological evidence.
2024.04.27 Saturday
Broaden the search scope of the database and reproduce the structure in the literature
We expand our searching criteria on atherosclerosis after we decided to check whether we can find more outstanding miRNA in different diseases.
Qing Ren, Yiting Zhao, and Haoyang Liu attempted to further modify the double-arm gate structure, but have not yet found an effective method. As a result, we re-examined the structures provided in the references used for the LIRA design. Meanwhile, due to the lack of epidemiological support for the selected miRNAs.
Haoyang Liu and Xinhao Liao attempted to broaden the search scope for heart diseases and screen the datasets.
2024.05.05 Sunday
Illustrate the screening process with a flowchart and design a new single-arm LIRA
We continue on our work on the identification of miRNA and organized our process as flowcharts to demonstrate our workflow.
Haoyang Liu and Xinhao Liao attempted to organize the miRNA screening process by drawing a flowchart. They also conducted screenings on the GEO and TCGA databases, but have not yet obtained the ideal target miRNAs.
Qing Ren and Yiting Zhao continued on their work on designing the new single and double arm LIRA and attempt to build functional LIRA by verifying the results after hybridizing the LIRA and new miRNA in NUPACK Software.
2024.05.12 Sunday
Identify filtering metrics and try to design and learn machine learning algorithms
We continued our working progress and made progress on the identification of target miRNA.
Haoyang Liu and Xinhao Liao further expanded their search for heart disease conditions to include myocardial infarction, and comprehensively considered the FC values and the rankings of miRNAs in heart diseases and tumors.
Yiting Zhao prepared for the subsequent analysis of the mathematical model and began to learn machine learning algorithms start from clustering.
Qing Ren started to design the double-arm LIRA to detect miR-192-5p and miR-165-5p.
2024.05.19 Sunday
Determine the final miRNAs
We re-reviewing the LIRA research literature.
Xinhao Liao and Haoyang Liu concluded that miR-210-3p and miR-142-3p are more suitable miRNAs. They presented the results of their literature search collaboration with the exp team at this week's group meeting, and found epidemiological evidence supporting the role of miR-210-3p in myocardial infarction and tumors.
Qing Ren and Yiting Zhao decided to start designing various single-arm structure which can be
used to detect miR-210-3p and miR-142-3p.
2024.05.29 Wednesday
Learn from previous years' gold medal projects to find where they are available to use
All Model group members read and analyzed model parts on Indonesia's wiki in 2023 together. We report it to our PI and discussed feasibility of borrowing ideas from them. Our PI introduced results Exp group obtained till that day. Model group decided to build our own modeling ideas based on requirements and results raised by exp group.
2024.06.12 Wednesday
Organize the overall project plan of the model group
In this meeting , the four members of the Model team decided to organize our whole Model work plan to facilitate our work. We sorted out the progress we had made and planned for the subsequent work, successfully outlining a comprehensive work schedule for the Model.
All the members brought up their ideas on the process of modeling the whole process of designing and evaluating the LIRA, we divided our whole work into parts, the identification of our target miRNAs, the designing of LIRA, the optimization of LIRA and finally the simulation of the LIRA application in real world.
2024.07.07 Sunday
Introduce the model group's proposal to everyone on the team
After the Model group finished our finals, we partipated in the all-staff meeting reunion to share the progress of each group. We shared our progress and our working plan with our exp group and continued our work.
2024.07.16 Tuesday
Start dynamic modeling
The Model group communicated with exp group, we began our work on the kinetic model.
Haoyang Liu and Qing Ren introduced the Model group's work arrangements, and further attempt to analyze the process of designing single-arm LIRA and construct functional LIRA using our previous selected miRNA.
Yiting Zhao and Xinhao Liao searched codes about kinetic simulation and the principles during forming ordinary differential equations.
2024.07.25 Thursday
Design 6 types of single-arm LIRA and start building the wiki page
After continuous attempts, we made some progress.
Qing Ren and Haoyang Liu successfully constructed three stem-loop ratio single-arm LIRA structures for miR-210-3p and three for miR-142-3p.
Yiting Zhao tried to realize the kinetic model by Team-Indonesia and used the information searched last week to list equations from reaction steps listed by Team Indonesia. We compared our equations with them, and solved the ODE equations by using MATLAB. The result is the same and proves that the codes we used are basically correct. We presented our requirements to the experimental group, requiring them to tease out the chemical reaction process in the experiment and list the chemical reaction expressions.
Xinhao Liao began constructing the wiki page. He first systematically organized the components of the process of writing the wiki. He started to searching for the tools in writing wiki and organized the codes corresponding to different function.
2024.07.31 Wednesday
Proposed the concept of stem-loop ratio and continued working with kinetics and wiki page
After designing multiple single-arm LIRA sequences, we attempt to analyze the trends in these LIRAs' free energy change. And further adjust our kinetic model.
Haoyang Liu and Qing Ren designed 13 different stem-loop ratios (constrained by the LIRA structure) for the single-arm structures of 210-3p and 142-3p and conducted fitting curve simulations, but the results were not satisfactory.
Yiting Zhao received reaction process of single-arm LIRA given by Qiyu Tan and Sirui Dong. We listed out ODEs and done kinetic simulations of single-arm LIRA.
Xinhao Liao piled up his work and organized each code for different function such as the coloring of tables, inserting videos, etc. By sorting out these sections, he greatly saved our time to optimize our wiki.
2024.08.15 Thursday
Increase the number of LIRA designs, continue kinetic simulation and upload the description page
We continue to explore the unsolved problems of last week, mainly exploring the problems that cannot be explained by the setting of stem-loop ratio and the results of dynamic simulations.
Qing Ren tried to design 560 single-arm LIRAs, and finally designed a total of 280 single-arm LIRA sequences corresponding to the ratio of 10 LIRA to each stem-loop ratio according to the stem ring design, and the cluster analysis of these LIRAs did not find an obvious linear relationship. Therefore, we deduced that the effect of stem ring on the structure of single-arm LIRA was not significant, and handed over to the exp group of 6 single-arm sequences to verify our conclusion.
Yiting Zhao used reaction process provided by Qiyu Tan and Sirui Dong to do the kinetic simulation of double-arm LIRA.
Xinhao Liao continued to build the wiki web page, he communicated with the experimental team and uploaded the description page of our project.
Haoyang Liu sorted out our process in LIRA design and organized it into a pipeline. He also tried to further analyze the structure of LIRA, and began to think about the unsatisfactory fitting effect of the multivariate regression of the Indonesia team.
2024.08.21 Wednesday
Successfully designed a dual-arm LIRA and searched for the parameters of the reaction process and communicated the wiki style
In this meeting, we try to design double-arm LIRA based on the results of clustering stem-loop.
Haoyang Liu successfully designed double-arm LIRA by 7/15 and 8/15 and demonstrate the hybridization process of LIRA and 2 target miRNA.
Qing Ren organized the single-arm designing results and communicate with the exp group with our designed sequences.
Yiting Zhao discussed with Qiyu Tan and Sirui Dong about the part that does not conform to the experimental expectations. Most of the information in the literature describes extracellular, so we used k value of extracellular to instead the lacking k value of intracellular, which may resulted in inaccuracy.
Xinhao Liao communicated with the wiki group about the styles we would like to present on our wiki page. They discussed how to coordinate the visual message delivery with our project design.
2024.08.26 Monday
Find LIRA optimization methods and start writing wiki
In this meeting, we propose indicators to measure the performance of LIRA, and try to construct an evaluation method for LIRA.
Xinhao Liao continues to make changes to the wiki and communicate with the wiki about the style design of our website and made some primary versions to compare.
Haoyang Liu and Yiting Zhao are inspired by Team Indonesia and proposed that whether the RBS and AUG are exposed after the hybridization of LIRA and miRNA can by analogizing to the expression of EGFP in wet experiment. We introduce a concept of "lock" and "unlock" to measure the performance of LIRA. We thought about how LIRA's indicators measure LIRA, and proposed the importance of introducing random forest models after calculated each indicator.
Qing Ren sorted out the previous single-arm design and double-arm design content to start writing this part of the wiki content.
2024.09.08 Sunday
Upload the wiki content of the HP and Education groups and try to draw a 3D model diagram
In this meeting, we successfully built a random forest model to link the indicators to evaluate the performance of LIRA and the function of LIRA.
Haoyang Liu tried to add different miRNAs to the kinetic simulation model, and obtained the data on the change of EGFP expression in the LIRA system when different concentrations of miRNAs were added. Also tried our 3D curve analysis and wrote a difference analysis wiki page.
Qing Ren completed the design process of single-arm and double-arm LIRA writing content in the wiki.
Yiting Zhao began to try to write wiki contents for the LIRA performance evaluation parts of the indicator with double-arm LIRA.
Xinhao Liao continued to build our websites, helping us to build the initial website of Education and HP and brought up some suggestion on the selection of materials and repaired some images during interviews with less clarity.
2024.09.16 Monday
Start writing a notebook in the model group and upload the Collaboration, Safety, and Protocol pages
Our model meeting is mainly to communicate about the writing of our model page.
Haoyang Liu completed the writing of 3D wiki content and difference analysis content.
Qing Ren organized the notebook of our model and assists in the organization and modification of the content of the model's web page.
Yiting Zhao completed the writing of the optimization and dynamic simulation of double-arm.
Xinhao Liao continued to help our team with the construction of the website, including completing the construction of the IHP website, the collaboration website, the safety website, the protocol website, and the start of the model website.
2024.09.18 Wednesday
The end of model
With our continuous efforts, our model work was successfully completed. After the final proofreading of our wiki, our model work was officially completed and we started to prepare our final presentation.
Thank you for reading our notebook! We are heading for the best Model!
https://2024.igem.wiki/cjuh-jlu-china/model
2023.01.17 Sunday
The first iGEM team meeting
This was the first time we held a meeting with all members in our team, members in the Human Practice group and the Education group analyzed the gold medal cases.
2024.01.25 Friday
1st brainstorm
The HP&Edu team shared our upcoming activity plans.
Luohan Ge shared her experiences of iGEM and provided guidance and suggestions to the team members.
Jingying Qu proposed the idea of designing an original heart health exercise routine.
Haiyue Yu proposed the idea of organizing a series of sports activities, which was inspired by the spirit of the Paris 2024 Olympic Games.
Yeyao Guo proposed the idea of conducting educational presentations tailored to students of different age groups.
Xinyi Shi proposed the idea of creating a children's picture book and also prepared presentation slides for both elementary and high school students.
2024.01.28 Sunday
Presentation at the First Middle School of Yitong Manchu Autonomous County.
Luohan Ge delivered a lecture to the First Middle School of Yitong Manchu Autonomous County.
2024.01.31 Wednesday
Presentation at Zibo No. 4 Middle School in Shandong Province.
Jingying Qu gave a lecture on the theme of synthetic biology and iGEM competition at Zibo No. 4 Middle School in Shandong Province.
2024.02.02 Sunday
The sports activity plan.
Haiyue Yu finished the campus tennis teaching activity plan.
Xinyi Shi planned the "Draw the synthetic biology in our heart - Frisbee DIY" activity.
2024.02.18-20 Tuesday-Thursday
1st WeChat press release
Jingying Qu wrote a press release on the lecture of Zibo No.4 Middle School in Shandong Province.
Yeyao Guo typeset and Luohan Ge revised the WeChat official account manuscript of Shandong Zibo No. 4 Middle School preach.
2024.02.21 Friday
Presentation at the Experimental School of Zichuan Economic Development Zone
Jingying Qu chose the Experimental School of Zichuan Economic Development Zone in Shandong Province to give an online lecture.
2024.02.22 Saturday
2nd brainstorm
Luohan Ge hosted the 2nd brain storm, and gave suggestions to the group members.
Jingying Qu wrote the English interpretation version of the Cardiac Health Exercises, Haiyue Yu modified.
Haiyue Yu proposed the idea of attending the 18thOriental Congress of Cardiology, OCC2024.
Yeyao Guo proposed the idea of designing a "heart disease → tumor" pipeline game.
Xinyi Shi proposed the idea of making the Synthetic Biology Manual.
2024.3.1 Friday
The activity plan
Haiyue Yu finished the attendance plan of the 18thOriental Congress of Cardiology,OCC2024.
2024.3.2 Saturday
2nd WeChat press release
Luohan Ge finished the Wechat public number manuscript of the iGEM theme lecture in the First Middle School of Yitong Manchu Autonomous County, typesetting by Yeyao Guo.
2024.3.3 Sunday
Game design
Yeyao Guo completed the design and preliminary construction of the "heart disease → tumor" pipeline game.
2024.3.4 Monday
Synthetic biology manual
Xinyi Shi wrote the text part of the synthetic biology manual, which was modified by Luohan Ge and Zhongyu Chen.
2024.3.9 Saturday
3rd WeChat press release
Yeyao Guo completed the typesetting of the Wechat public account on the theme of "Walking into iGEM" in Changchun No. 17 Middle School, which was wrote by Yunze Li.
2024.3.9 Saturday
SYNO card game
Xinyi Shi adapted the UNO card game and combined it with synthetic biology to form SYNO card game; Zhongyu Chen, Luohan Ge and Saiyu Luo modified it.
2024.3.10 Sunday
4th WeChat press release
Yeyao Guo completed the typesetting of the WeChat official account of the 2024 CJUH-JLU-China team recruitment activity.
2024.3.10 Sunday
Lecture at Shuxun Primary School in Nanguan District, Changchun
Yeyao Guo, Luohan Ge, Xinyi Shi, Haiyue Yu went to the Shuxun Primary School in Nanguan District, Changchun, and gave a lecture on the theme of "Into the Kingdom of Cells".
6
2024.3.13 Wednesday
1st Vlog
Haiyue Yu produced the team's first Vlog - Shuxun Primary School lecture Vlog, which was modified by Luohan Ge.
2024.3.14 Thursday
The activity plan
Jingying Qu finished the writing the plan of the “Design your heart” activity.
2024.3.15 Friday
The Synthetic Miracle Characters" theme blog
Yeyao Guo completed the writing of the Chinese manuscript of the "Synthetic Miracle Characters" theme blog, and Luohan Ge, Xinyi Shi modified it.
2024.3.15 Friday
The first draft of the picture book
Xinyi Shi wrote the first draft of the picture book "Little Noah who doesn't love hygiene", which was revised by Luohan Ge and translated by Haiyue Yu.
2024.3.17 Sunday
The recording of Cardiac Health Exercises
Jingying Qu, Yeyao Guo, Haiyue Yu and Luohan Ge recorded the full version of Cardiac Health Exercises and the explanation video.
2024.3.17 Sunday
Feedback of education activities
Xinyi Shi wrote a team feedback form for educational activities, and collected 866 feedback forms.
2024.3.17 Sunday
Introduced the production methods of bacterial painting
Haiyue Yu and Luohan Ge connected with professors from the School of Plant Science of Jilin University,and the professor of microbiology introduced the production methods of bacterial painting and some painting skills to our team.
2024.3.19 Tuesday
Presentation at the International Department of Changchun Jilin University
Haiyue Yu and Jingying Qu went to the International Department of Changchun Jilin University Affiliated Experimental School, and gave an all-English lecture.
2024.3.19 Tuesday
Presentation at the Affiliated Middle School of Jilin University
Yeyao Guo and Luohan Ge went to the Affiliated Middle School of Jilin University, and gave a lecture on the theme of " Approaching Synthetic Biology".
2024.3.20 Wednesday
Presentation at the Changchun No. 5 Middle School
Haiyue Yu went to Changchun Tianjiabing Experimental Middle School (Changchun No. 5 Middle School) to give a lecture on the theme of synthetic biology.
2024.3.21 Thursday
5th WeChat press release
Yeyao Guo completed the writing of the press release and the typesetting of the WeChat official account of the theme of " Approaching Synthetic Biology" in the Middle School Affiliated to Jilin University, Luohan Ge revised.
2024.3.21 Thursday
6th WeChat press release
Jingying Qu completed the Wechat public number manuscript of Zichuan economic Development zone experimental school lecture, Yeyao Guo completed the typesetting, Luohan Ge revised.
2024.3.23 Saturday
7th WeChat press release
Haiyue Yu wrote a press release from the lecture of International Department of Changchun Jilin University Affiliated Experimental School, Yeyao Guo typeset and Luohan Ge revised.
2024.3.27 Wednesday
Activity plan
Jingying Qu preliminary design the heart puzzle game.
2024.3.27 Wednesday
“Design your heart” activity
Jingying Qu, Yeyao Guo and Haiyue Yu carried out the activity “Design your heart” at the Affiliated Middle School of Jilin University (junior high school).
2024.3.28 Thursday
The "heart disease → tumor" pipeline game
Yeyao Guo completed the production of the first draft of the "heart disease → tumor" pipeline game display.
2024.3.30 Saturday
8th WeChat press release
Haiyue Yu wrote a press release on the theme of "CJUH-JLU-China's date with high school students in synthetic biology", which was revised by Luohan Ge, Yeyao Guo typeset.
2024.3.30 Saturday
9th WeChat press release
Jingying Qu wrote a press release on the activity of "Design your heart", which was revised by Luohan Ge, Yeyao Guo typeset.
2024.3.31 Sunday
Campus tennis teaching activity
Haiyue Yu, Luohan Ge, Yeyao Guo, Xinyi Shi and Jingying Qu hosted the Campus tennis teaching activity in Song Zhiping Gymnasium of Jilin University.
2024.3.31 Sunday
Activity plan
Haiyue Yu wrote the Laboratory Open Day - Bacterial Painting Tour activity plan.
2024.4.1 Monday
Activity feedback
Jingying Qu organized the feedback of "Design your heart" activity.
2024.4.2 Tuesday
SYNO card-game revise
Xinyi Shi revised the introduction of SYNO card-game.
2024.4.3 Wednesday
Activity feedback
Haiyue Yu sorted the feedback of Campus tennis teaching activity.
2024.4.4 Thursday
1st podcast
Yeyao Guo recorded the first episode of the podcast of "Synthetic Miracle Characters".
2024.4.5 Friday
The investigation questionnaire
Jingying Qu initially completed the investigation questionnaire.
2024.4.5 Friday
10th WeChat press release
Yeyao Guo wrote and typeset a press release from the lecture of Shuxun Primary School in Nanguan District, Changchun and Luohan Ge revised.
2024.4.6 Saturday
Activity idea
Xinyi Shi put forward the idea of 21 days of good work and rest.
2024.4.8 Monday
The video of Cardiac Health Exercises
Jingying Qu replaced the video cover of Cardiac Health Exercises, which was drawn by Binghan Yang, and completed the video of Cardiac Health Exercises.
2024.4.9 Tuesday
2nd podcast
Yeyao Guo recorded the second episode of the podcast of "Synthetic Miracle Characters".
2024.4.10 Wednesday
3rd podcast
Yeyao Guo recorded the third episode of the podcast of "Synthetic Miracle Characters".
Interview with Prof. Songli Mei, a doctoral advisor in medical ethics at the School of Public Health, Jilin University
Haiyue Yu contacted Professor Songli Mei from the School of Public Health at Jilin University. Luohan Ge, Zhongyu Chen, and Yeyao Guo interviewed Professor Mei about medical ethic issues.
2024.4.12 Friday
Interview with Prof. Songli Mei, a doctoral advisor in medical ethics at the School of Public Health, Jilin University
Haiyue Yu contacted Professor Songli Mei from the School of Public Health at Jilin University. Luohan Ge, Zhongyu Chen, and Yeyao Guo interviewed Professor Mei about medical ethic issues.
2024.4.13 Saturday
Presentation at the Changchun Jiefang Road Primary School
Haiyue Yu and Yeyao Guo went to Changchun Jiefang Road Primary School to teach basic biological knowledge to the students.
2024.4.13 Saturday
11th WeChat press release
Haiyue Yu completed the news draft for the preach at Changchun Jiefang Road Primary School, Yeyao Guo completed the typesetting, Luohan Ge revised.
2024.4.14 Sunday
The "Synthetic Journey, 'Fly' You Can't Miss" activity
Xinyi Shi, Luohan Ge, Haiyue Yu, Yeyao Guo, and Jingying Qu jointly held the "Synthetic Journey, 'Fly' You Can't Miss" activity at Jilin University. Yuxin Deng designed the frisbee sticker layout.
2024.4.14 Sunday
The activity plan
Haiyue Yu wrote the planning proposal for the theme music meeting "Protect the Heart".
2024.4.16 Tuesday
Presentation in the Evolution Community
Yeyao Guo and Luohan Ge gave a thematic preach on "Working Hand in Hand with Residents to Protect the Heart" to community workers in the Evolution Community.
2024.4.17 Wednesday
The vlog of the "Synthetic Journey, 'Fly' You Can't Miss" activity
Xinyi Shi edited the vlog of the "Synthetic Journey, 'Fly' You Can't Miss" activity.
2024.4.18 Thursday
The news draft for the thematic preach "Working Hand in Hand with Residents to Protect the Heart"
Yeyao Guo completed the news draft for the thematic preach "Working Hand in Hand with Residents to Protect the Heart".
2024.4.18 Thursday
Interview with Prof. Huan Sun from the Department of Cardiology at the China-Japan Union Hospital of Jilin University
Zhongyu Chen and Yeyao Guo interviewed Dr. Huan Sun from the department of Cardiology at the China-Japan Union Hospital of Jilin University.
2024.4.19 Friday
The activity plan
Jingying Qu completed the planning proposal for the Heart Puzzle Game.
2024.4.19 Friday
12th WeChat press release
Yeyao Guo typeset and Luohan Ge reviewed the WeChat public account manuscript of the interview with Professor Songli Mei.
2024.4.20 Saturday
Interview with Dr. Linlin Liu
Zhongyu Chen, Jingying Qu, Haiyue Yu interviewed Dr. Linlin Liu, Presedent of the China-Japan Union Hospital of Jilin University, and director of the Oncology Department
2024.4.21 Sunday
A heart health science activity
Xinyi Shi and Jingying Qu participated in a heart health science activity at Jianyin·Qixiangyuan Changxing Elderly Care Center, demonstrating and teaching cardiac health exercises.
2024.4.23 Tuesday
The QR code for the online survey questionnaire
Jingying Qu created the QR code for the online survey questionnaire.
2024.4.23 Tuesday
13th WeChat press release
Xinyi Shi completed the news draft for the "Synthetic Journey, 'Fly' You Can't Miss" activity, Yeyao Guo completed the typesetting, Luohan Ge revised.
2024.4.26 Friday
14th WeChat press release
Haiyue Yu wrote the Wechat official account manuscript of the Campus tennis teaching activity, Yeyao Guo typeset and Luohan Ge reviewed.
2024.4.27 Saturday
The vlog for the "Design your heart" activity
Jingying Qu completed the final editing of the vlog for the "Design your heart" activity.
2024.4.30 Tuesday
The activity plan
Jingying Qu completed the planning proposal for the heart health interview.
2024.5.1 Wednesday
The "Laboratory Open Day" activity
Haiyue Yu, Yeyao Guo, Binghan Yang, Yuxin Deng, and Yixuan Xiao completed the "Laboratory Open Day" activity.
2024.5.1 Wednesday
4th podcast
Yeyao Guo recorded the fourth episode of the "Synthetic Miracle Character Chronicles" podcast.
2024.5.2 Thursday
5th podcast
Yeyao Guo recorded the fifth episode of the "Synthetic Miracle Character Chronicles" podcast.
2024.5.2 Thursday
The heart health interview vlog
Jingying Qu edited the heart health interview vlog.
2024.5.3 Friday
6th podcast
Yeyao Guo recorded the sixth episode of the "Synthetic Miracle Character Chronicles" podcast.
2024.5.3 Friday
The heart health interview news release
Jingying Qu completed the heart health interview news release, edited by Luohan Ge.
2024.5.5 Sunday
15th WeChat press release
Xinyi Shi completed the news release for the nursing home event, Yeyao Guo formatted, and Luohan Ge reviewed.
2024.5.9 Thursday
The activity plan
Yeyao Guo formatted, and Luohan Ge reviewed the planning document for the heart health expo interview.
2024.5.10 Friday
The atherosclerosis brochure
Xinyi Shi completed the content for the atherosclerosis brochure.
2024.5.11 Saturday
The heart health expo interview
Yeyao Guo and Jingying Qu completed the heart health expo interview.
2024.5.11 Saturday
The heart disease survey questionnaire
Jingying Qu released the heart disease survey questionnaire.
2024.5.12 Sunday
The activity plan
Xinyi Shi planned to collaborate with the U-Tokyo iGEM team from Japan.
2024.5.15 Wednesday
The news release for the heart health expo interview
Yeyao Guo wrote, and Luohan Ge reviewed the news release for the heart health expo interview.
2024.5.16 Thursday
The video for the heart health expo interview
Yeyao Guo produced, and Luohan Ge reviewed the video for the heart health expo interview.
2024.5.17 Friday
The "Laboratory Open Day" vlog
Haiyue Yu produced the "Laboratory Open Day" vlog.
2024.5.18 Saturday
The news release for the "Laboratory Open Day"
Haiyue Yu wrote the news release for the "Laboratory Open Day," edited by Luohan Ge.
2024.5.18 Saturday
The data analysis of the survey questionnaire
Jingying Qu completed the data analysis of the survey questionnaire.
2024.5.20 Monday
Collaboration with U-Tokyo
U-Tokyo responded for the first time, confirming their intention to collaborate, agreeing to help translate children's picture books, and expressing a desire to communicate about the project.
2024.5.22 Wednesday
Presentation at Changchun University for the Elderly
Yeyao Guo gave a presentation on "Prevention and Treatment of Heart Disease" at Changchun University for the Elderly.
2024.5.23 Thursday
The design of the heart puzzle
Jingying Qu improved the design of the heart puzzle.
2024.5.24 Friday
The news release for the survey questionnaire
Jingying Qu completed the news release for the survey questionnaire.
2024.5.24 Friday
The news release for the lecture at the University for the Elderly.
Yeyao Guo wrote, and Luohan Ge reviewed the news release for the lecture at the University for the Elderly.
2024.5.27 Monday
Collaboration with U-Tokyo
The team responded to questions from U-Tokyo. The response content was provided by Saiyu Luo, reviewed by Zhongyu Chen, and translated by Ziming Zhong.
2024.5.31 Friday
A collaboration meeting with the UTokyo team.
Xinyi Shi, Zhongyu Chen, Ziming Zhong, Saiyu Luo, and Haiyue Yu held a collaboration meeting with the UTokyo team.
2024.6.3 Monday
The online oncology cardiology conference
Jingying Qu attended the online oncology cardiology conference.
2024.6.19 Wednesday
Interview with Prof. Yunsheng Dong from the School of Philosophy and Social Sciences at Jilin University
Haiyue Yu, Yeyao Guo, and Zhongyu Chen interviewed Professor Yunsheng Dong, Director of the Department of Sociology at the School of Philosophy and Social Sciences, Jilin University.
2024.6.29 Saturday
The 18th Oriental Cardiology Conference.
Luohan Ge, Zhongyu Chen, and Jingying Qu attended the 18th Oriental Cardiology Conference.
2024.7.5 Friday
The activity-"A Day of an iGEMer"
Shixin Yi organized an activity-"A Day of an iGEMer" and communicated with the group leaders.
2024.7.6 Saturday
The press release for the 18th Oriental Cardiology Conference
Jingying Qu completed the press release and summary for the 18th Oriental Cardiology Conference, and the first meeting with the mentor.
2024.7.10 Wednesday
The activity plan
Xinyi Shi planned the "21 days make a healthy heart" event, tentatively scheduled for August.
2024.7.11 Thursday
The CCiC conference
Zhongyu Chen, Luohan Ge, He Sun, Haiyue Yu, Yeyao Guo, and Yuetong Ge attended the CCiC conference.
2024.7.14 Sunday
The framework for the Education page
Xinyi Shi began designing the framework for the Education page.
2024.7.14 Sunday
The vlog for the CCiC conference
Haiyue Yu made a Vlog for the CCiC conference.
2024.7.15 Monday
A press release about attending the CCiC conference
Haiyue Yu wrote a press release about attending the CCiC conference, which was revised by Luohan Ge and Saiyu Luo.
2024.7.16 Tuesday
Interview with Dr. Daoyuan Si
Zhongyu Chen, Luohan Ge, and Yeyao Guo interviewed cardiologist Dr. Daoyuan Si, associate chief physician of Cardiology at the China-Japan Union Hospital of Jilin University.
2024.7.18 Thursday
Interview with Dr. Beibei Du, the Associate Chief Physician of Cardiology at the China-Japan Union Hospital of Jilin University
Luohan Ge and Zhongyu Chen interviewed cardiologist Dr. Beibei Du, the Associate Chief Physician of Cardiology at the China-Japan Union Hospital of Jilin University.
2024.7.18 Thursday
The content of "Ten Tips for Scientific Cancer Prevention"
Xinyi Shi started writing the content of "Ten Tips for Scientific Cancer Prevention."
2024.7.18 Thursday
Interview draft with Professor Yunsheng Dong
Haiyue Yu wrote the Chinese and English versions of the interview with Professor Yunsheng Dong.
2024.7.19 Friday
Interview with Dr. Wenqi Zhang, Department of Cardiology at the China-Japan Union Hospital of Jilin University
Zhongyu Chen, Haiyue Yu, and Jingying Qu interviewed Dr. Wenqi Zhang from the department of Cardiology at the China-Japan Union Hospital of Jilin University
2024.7.19 Friday
16th WeChat press release
Yeyao Guo formatted and Luohan Ge reviewed the CCiC WeChat public account.
2024.7.22 Monday
Interview with Dr. Weihua Zhang from the First Hospital of Jilin University
Haiyue Yu, Zhongyu Chen, Luohan Ge, and Yeyao Guo interviewed Dr. Weihua Zhang, and Yeyao Guo recorded and wrote the interview draft.
2024.7.22 Monday
Interview draft with Dr. Wenqi Zhang
Jingying Qu completed the interview draft with Dr. Wenqi Zhang.
2024.7.23 Tuesday
The synthetic biology ethics manual
Yeyao Guo completed the Chinese and English versions of the synthetic biology ethics manual assigned by CJUH-JLU-China.
2024.7.24 Wednesday
The team song
Haiyue Yu created the team song.
2024.7.26 Friday
The second meeting with the mentor
The team held the second meeting with the mentor, and Haiyue Yu summarized the meeting content.
2024.7.27 Saturday
Interview with Dr. Jian Wu
Jingying Qu, Luohan Ge and Zhongyu Chen attended the first North Spring City Cardiology Conference and interviewed Professor Jian Wu and Prof. Yunzeng Zou.
2024.7.27 Saturday
The "21 days make a healthy heart" event
Xinyi Shi began promoting the "21 days make a healthy heart" event.
2024.7.28 Sunday
The HP web-page framework
The HP group initially finalized the HP web-page framework with Zhongyu Chen.
2024.7.29 Monday
The Vlog of the 18th Oriental Cardiology Conference
Jingying Qu completed the Vlog for the 18th Oriental Cardiology Conference.
2024.08.01 Thursday
The meeting with Yiye-China
Luohan Ge, Zhongyu Chen, Jingying Qu, Xinhao Liao, Haoyang Liu participated the meeting with Yiye-China online.
2024.8.1 Thursday
“21 days, let's make hearts healthier!”
Xinyi Shi initiated the "21 Days to a Healthier Heart!" activity.
2024.08.02 Friday
Interview record of Dr. Jian Wu.
Jingying Qu finished the interview record of Dr. Jian Wu.
2024.8.2 Friday
Invitation for collaboration with UTokyo
Xinyi Shi reached out to team UTokyo to explore collaboration on the Ethics of Synthetic Biology.
08.04-09.10 Sunday
IHP wiki framework
Haiyue Yu, Zhongyu Chen, and Yeyao Guo brainstormed together and wrote the initial text for the integrated human practices (IHP) page. They spent a month refining the content, going through a total of 16 drafts. With the help of many CJUH-JLU-China members, such as Jingying Qu, Ziming Zhong, and Adila, they completed the written portion of the IHP section.
2024.8.6 Tuesday
The completion of Ten Scientific and Practical Tips for Cancer Prevention
Xinyi Shi consulted the literatures and completed the textual content of “Ten Scientific and Practical Tips for Cancer Prevention”.
2024.8.8 Thursday
Planning for iGEMers' Day
Xinyi Shi completed the planning of the iGEMers' Day and communicated with other groups to determine the work content of each group.
2024.08.13 Tuesday
The SWOT analysis
Jingying Qu finished writing the SWOT analysis.
2024.08.14-09.19 Wednesday
Collaboration wiki framework
Luohan Ge wrote the initial draft for the Collaboration wiki content and designed the preliminary webpage framework. Haiyue Yu, Jingying Qu, Haoyang Liu, and Xinyi Shi provided subsequent content additions and modifications, while Adila refined the language of the document. Over the course of more than a month, they revised the draft seven times, ultimately completing the written section.
2024.08.15 Thursday
Interview draft with Dr. Huan Sun
Yeyao Guo completed the interview draft with Dr. Huan Sun.
2024.8.14 Wednesday
WeChat official account article for the 1st Northeast iGEM Meetup
Yeyao Guo formatted the WeChat official account article for the 1st Northeast iGEM Meetup, which was written and reviewed by Luohan Ge.
2024.08.15 Thursday
Interview with lawyer Jiuhui Feng
Before interviewing the patients, Yeyao Guo and Jingying Qu interviewed lawyer Jiuhui Feng.
2024.08.16 Friday
Interview with lawyer Kunyang Xue
To obtain professional advice on the product feasibility of Heartecho from a business perspective, Yeyao Guo and Jingying Qu conducted an online interview with Kunyang Xue.
2024.8.18 Sunday
The medals wiki design
Xinyi Shi designed the medals wiki.
2024.8.18 Sunday
WeChat official account article for My Little Octopus
Yeyao Guo formatted the WeChat official account article for the game My Little Octopus, which was written by Ting Sun and reviewed by Luohan Ge.
2024.08.18 Sunday
Interview record
Jingying Qu finished the interview record of Dr. Linlin Liu.
2024.8.20 Tuesday
Manuscript collection of Ethics of Synthetic Biology
We have gathered the Chinese and English manuscripts of the partner teams' contributions for the Ethics of Synthetic Biology. Additionally, the English manuscript from UTokyo was translated into Chinese by CJUH-JLU-China. Yeyao Guo communicated with co-editors for compiling the content, collaboratively establishing the writing logic and content framework for the documents.Yeyao Guo has completed the initial draft of the comprehensive Chinese and English versions of Ethics of Synthetic Biology.
2024.8.22 Thursday
Interview with lawyer JunlingBai
To obtain professional advice on the product feasibility of Heartecho from a legal perspective, Yeyao Guo and Haiyue Yu conducted an online interview with lawyer Junling Bai.
2024.8.23 Friday
Invitation for Collaboration on the translation of Invisible Bacteria with Evry-Paris-Saclay
Xinyi Shi contacted Envy-Paris-Saclay to collaborate on the translation of Invisible Bacteria.
2024.8.25 Sunday
Interview with Hongyu Li
To obtain professional advice on the product feasibility of Heartecho from a industrial perspective, Yeyao Guo conducted an interview with Hongyu Li, the Secretary of Board of Changchun High-Tech Industry (Group) Co.,Ltd.
2024.08.27 Tuesday
Interview with Prof. Jin
Jingying Qu, Haiyue Yu, Haoyang Liu interviewed professor Lina Jin.
2024.08.28 Wednesday
Interview record
Jingying Qu finished the interview record of Prof. Lina Jin.
2024.8.30 Friday
Initial web content for the Entrepreneur section
Yeyao Guo has drafted the initial web content for the Entrepreneur section of iHP. A detailed analysis was conducted covering unmet needs, stakeholders & potential customers, product feasibility, and development plans.
2024.9.4 Wednesday
WeChat official account article for the 18th Oriental Cardio-Oncology Conference
Yeyao Guo formatted the WeChat official account article for the 18th Oriental Cardio-Oncology Conference, which was written by Jingying Qu and reviewed by Luohan Ge.
2024.09.06 Saturday
Exploring the Micro World: What Are Bacteria?
Xinyi Shi and Haiyue Yu went to the Third Kindergarten Affiliated with Jilin University and held an activity about bacteria.
2024.9.8 Sunday
The business plan of Heartecho
Guo Yeyao completed the business plan of Heartecho, which detailed our analysis of the market, cost, risk and other important factors of commercialization.
2024.9.8 Sunday
The joint presentation of Jilin University's five iGEM teams and enterprises
Zhongyu Chen, Xinyi Shi, Qiyu Tan, Haiyue Yu and Jingying Qu participated in the joint presentation of Jilin University's five iGEM teams and enterprises.
2024.9.13 Sunday
Patient interview
Haiyue Yu, Zhongyu Chen, Yeyao Guo, and Qiyu Tan visited the Cardiology Department at Jilin University's China-Japan Union Hospital, where they coordinated with Dr. Ming Yu and Dr. Zhongfan Zhang. After securing informed consent from the patients and their families, they conducted interviews in a confidential setting. During these discussions, they obtained invaluable insights and suggestions from the patients.
2024.9.13 Sunday
Interview with representatives of Johnson & Johnson Medtech
To confirm the viability of our business plan, Zhongyu Chen, Xinyi Shi, Haiyue Yu,Yeyao Guo, and Jingying Qu interviewed representatives of Johnson & Johnson Medtech. Junming Yan, Senior Clinical Specialist in Johnson & Johnson Medtech, evaluated Heartecho's business plan and provides recommendations for amendments.
2024.9.13 Friday
The presentation video PPT
Jingying Qu completed the presentation video PPT, Haiyue Yu revised and wrote the content.
2024.09.14 Saturday
iGEMers' Day
Xinyi Shi, Yeyao Guo, Qiyu Tan, Haoyang Liu, Ziming Zhong, He Sun, and Zhongyu Chen invited 15 freshmen and held the activity “iGEMers' Day”.
2024.9.16 Monday
WeChat official account article for JLU iGEM Team Meetup
YeyaoGuo formatted the WeChat official account article for JLU iGEM Team Meetup, which was written by Jingying Qu and reviewed by Luohan Ge.
2024.9.19 Thursday
Ethics of Synthetic Biology
Yeyao Guo completed the typesetting and checking of Ethics of Synthetic Biology. The official Chinese and English versions of this document are completed.
2024/1/7 Sunday
1st wiki group meeting
During the first group meeting, members of the Wiki team (He Sun, Yixuan Xiao, Binghan Yang, Yuxin Deng Ting Sun ) mainly created the initial logo design for the project and the logo design for the mini game
Yixuan Xiao, Binghan Yanga and Yuxin Deng designed the first version of the logo for the project.
Ting Sun designed the first version of the logo for the project
Project logo
Game logo
2024/1/17 Wednesday
The First iGEM Team Meeting
During the first group meeting after the establishment of the cjuh-jlu china team, Wiki team members drew attribution and collaboration pages, while the Wiki team leader assigned specific tasks to each person.
Yixuan Xiao, Binghan Yanga ,Yuxin Deng and Ting Sun designed the first version of the cover image for “Attributions”and “Collaboration”.
2024/1/26 Friday
2nd wiki group meeting
During the second group meeting, the Wiki team made some new designs and also made modifications to the previous design drawings.
Yixuan Xiao:
1. Designed more logos for our project
2. Modified the logo of our project
Yuxin Deng:
1.Edited our team flag
Ting Sun:
1. Made a draft of a game for our project
2024/2/8 Thursday
3rd wiki group meeting
During the third group meeting, members of the Wiki team ( Yixuan Xiao, Binghan Yang ) mainly created the initial team uniform for the project
Team uniform
2024/2/16 Friday
4th wiki group meeting
During the third group meeting, members of the Wiki team ( Yixuan Xiao, Binghan Yang ) mainly modified our team uniform for the project
Team uniform
2024/2/25 Sunday
5th wiki group meeting
During this period, the Wiki team made some new designs and made modifications to the previous design drawings, while mainly editing "attribution" and "collaboration".
He Sun:
1. Practiced drawing experimental diagrams
Yixuan Xiao:
1. Designed the team flag during this period.
2. Edited the cover image for “Attributions”
Binghan Yang:
1. Modified the “Collaboration” page and Attributions”page.
2. Drew sketches of our teachers
Yuxin Deng:
1. Edited the cover image for “Attributions”
2. Edited the cover image for “Collaboration”
Ting Sun:
1. Modified the draft of our game
2024/3/5 Tuesday
6th wiki group meeting
During the sixth group meeting, members of the Wiki team ( Yixuan Xiao, Binghan Yang, Yuxin Deng ,Ting Sun ) mainly edited the logo designed for the project , edited the cover image for “Collaboration” and ”Attribution”, made new designs for “Home” and “Notebook” ,designed posters for events related to our project, modified our team logo and team flag and made a draft of two games for our project.
Yixuan Xiao:
1. Changed the format of the logo
2. Designed the first version of the cover image for “Home”and “Notebook”.
Binghan Yang:
1. Made two drafts of the first version of the cover image for “Home”
2. Made two drafts of the first version of the cover image for “Notebook”
Yuxin Deng:
1. Modified team flag logo
2. Edited our team flag
3. Designed decorative graphics for frisbees
4. Designed a poster for the frisbee event
25
5. Designed the first version of the cover image for “Education Tree”
Ting Sun:
1. Made a draft of a puzzle game for our project
2. Made a draft of a digital pet game for our project
2024/3/11 Monday
7th wiki group meeting
During the seventh group meeting the Wiki team made some new designs for “Safety” and our frisbees event, they also made modifications to the previous design drawings such as “Notebook”, ”Home” and the games.
Yixuan Xiao:
1. Designed the first version of the cover image for “Safety”
Binghan Yang:
1. Followed up on the home page and modified the notebook page.
Yuxin Deng:
1. Modified our team logo and team flag.
2. Edited decorative graphics of frisbees.
3. Edited the posters of the frisbee event and the tennis event
Ting Sun:
1. Kept modifying the games
2024/3/16 Saturday
8th wiki group meeting
During this time, the Wiki team made some new designs for a picture book of our project and also made modifications to the previous design drawings such as posters and pics for the digital pet game.
He Sun:
1. Produced drafts of some parts for the picture book of our project
Binghan Yang:
1. Designed a poster for the frisbee event
Yuxin Deng:
1. Designed sticker graphics for the frisbees and drew a poster for the frisbee event
Ting Sun:
1. Kept modifying the games
2024/3/24 Sunday
9th wiki group meeting
At the ninth group meeting, the Wiki team made some new designs such as stickers and a video cover ,they also made modifications to the previous designs.
He Sun:
1. Designed stickers related to our project.
Yixuan Xiao:
1. Edited the logos of our project
Binghan Yang:
1. Edited the poster for the frisbee event and tennis event.
2. Designed the video cover for a heart health exercise routine of our project
Yuxin Deng:
1. Edited our team flag
2. Drew some pictures for the pipe game of our project
3. Edited the picture of the frisbee
4. Edited our team logo
Ting Sun:
1. Edit the pictures of the two games
2. Made a draft of the pictures of the card game
2024/3/31 Tuesday
The Second iGEM Team Meeting
During the second iGEM team meeting, members of the Wiki group mainly created stickers designed for the project and the graphics of our unique card game. They also kept making modifications of previous designs.
He Sun:
1. Designed stickers and sticky notes related to the project
2. Arranged the layout for the first few pages of the picture book
Yixuan Xiao:
1. Edited the logos of our project
2. Edited the cover image of “Home”
Binghan Yang:
1. Modified the poster of the tennis event
Yuxin Deng:
1. Edited the pictures of the pipe game
2. Designed icons for the card game
Ting Sun:
1. Designed icons for the card game
2. Kept drawing the pictures of the digital pet game
2024/4/6 Saturday
10th wiki group meeting
During this period, Wiki team members mainly focused on illustration design for related activities, game illustration design, and webpage modifications
He Sun :
complete the card format for the card game and design frisbee stickers and the design and layout of the picture book.
Yixuan Xiao:
modify the Collaboration page.
Ting Sun:
1. Draw the main interface title and buttons for the Little Octopus game.
2. Draw octopus game accessories.
3. Draw an outdoor scene with a small octopus and indoor lighting effects during the day.
4. Create a dynamic effect of a small octopus standing up.
Binghan Yang:
1.Modify the team uniform.
2.Revise the cover of the heart health exercise.
3.Card layout.
Yuxin Deng:
1. Modify the pattern of the "Sick Heart" and the "tumor" in the Pipe Game.
2. Complete the "Device" and "System" patterns for the card game.
3. Complete the back of the card drawing.
2024/4/14 Sunday
11th wiki group meeting
During the eleventh group meeting, we created new design drawings and team flags for the webpage, peripheral designs, and created posters for the HP team's activities. We also made adjustments to card related designs and created relevant design drawings for the game.
Yixuan Xiao:
1. Draw the Safety page diagram.
He Sun:
1. Complete uniform customization and sticker typesetting.
2. Design the Notebook.
Yuxin Deng:
1. Design the new team flag.
2. Modify the back of the card and draw the card box.
3. Draw the pipeline game cover.
Binghan Yang:
1. Complete the heart exercise cover drawing.
2. Modify the Frisbee campaign poster.and draw a bacterial painting poster.
Ting Sun:
1. Add to the tutorial of the small octopus game.
2. Key presses and physical strength strips are drawn.
3. Egg content
4. Achievement ending page of effect.
5. Indoor light effect.
2024/4/21 Sunday
12th wiki group meeting
During this period, we mainly focused on overall layout and design of the webpage, and continued to follow up and modify game and webpage design drawings.
He Sun:
1. Conceived of the webpage section.
2. Modify the Notebook.
Yixuan Xiao:
1. Modify the safety and collaboration page.
2. Design the Tame page. Description page··,Description page, Human Prctices page.and Medal page.
Binghan Yang:
1. Card typography.
2. Conceived of the web-page scheme.
Yuxin Deng:
1. Concise the web plan
2. Draw the pipeline game cover.
3. Lesdiseased heart puzzle and Healthy heart jigsaw puzzle.
2024/4/27 Saturday
13th wiki group meeting
This week, we mainly designed mascots, followed up with rich illustrations for web pages and games, and created posters and cartoon character images
He Sun:
1. Help to modify the little octopus game tutorial.
2. Design the web page role and conceived of the webpage section.
Yixuan Xiao Yuxin Deng and Binghan Yang:
1. Design mascot.
Yixuan Xiao:
1. Modify the Safety page.
Yuxin Deng:
1. Modify the pipeline game cover.
2. Modify the healthy heart jigsaw puzzle and the diseased heart jigsaw puzzle.
3. Design the navigation map.
Binghan Yang:
1. Modify the bacterial painting poster.
2. Modify the card typesetting.
3. Draw the loading diagram.
Ting Sun:
1. Modify the small octopus game map.
2. Perfect the small game tutorial.
3. Make a small octopus to eat with the dynamic effect.
2024/5/5 Sunday
14th wiki group meeting
The Wiki team added web pages and games, designed a questionnaire, and formatted SYNO game cards.
He Sun:
1. was mainly responsible for the team photo and the Notebook template.
Yixuan Xiao:
1. drew the heart disease questionnaire
2. Designed a webpage directory
Ting Sun:
1. Designed button illustrations for the Little Octopus game Binghan Yang:
2. Modified and completed the layout of the cards
3. Designed character cards for the team page
Yuxin Deng:
1. designed the navigation bar map of the web page.
2. Designed picture book illustrations
2024/5/19 Sunday
15th wiki group meeting
This week, we updated the content of the picture book, the first picture and content of the page, designed the autumn edition of the autumn edition, and added background pictures of the media platform account.
He Sun:
1. Colored the picture book of invisible Bacteria.
2. Drew the Manual of Synthetic Biology.
Yixuan Xiao:
1. Drew the first page of Model page,Medium page and Education page.
Binghan Yang:
1. Drew the avatars for the Team page members
2. Designed the autumn team uniforms.
Yuxin Deng:
1. Updated the picture book Invisible Bacteria,
2. Designed the blog cover and the background map of the TikTok platform.
2024/5/26 Sunday
16th wiki group meeting
We updated the web page this week, with changes to previous designs, adding new puzzle designs and podcast covers.
He Sun:
1. Painted the new line draft of the picture book "No Bacteria".
2. Revised the layout of the synthetic biology manual.
Yixuan Xiao:
1. Drew the Engineering page and notebook page.
Binghan Yang:
1. Updated the profile pictures of the team member
Yuxin Deng:
1. Modify the heart illustration puzzle
2. Designed podcast cover illustrations
2024/6/23 Sunday
During the final-exams month, we still finished some of the art work
Binghan Yang
1. Modify the fall uniform.
Yuxin Deng:
1. Designed what the card box would look like
2. Perfected a podcast cover
Xixuan Xiao:
1. Designed the CCiC promotion poster
2024/7/14 Sunday
Continue updating web design, avatar design, picture book illustrations, and game design progress.
During the July holiday, we continued to catch up with the progress and made new designs in picture books, web pages, and games
He Sun:
1. Updated the drawing of the picture book "The Invisible Bacterium".
2. Make a web page list.
Yixuan Xiao:
1. Modified the color scheme for attributes, safety, and notebook pages.
Binghan Yang:
1. Team page character card drawing.
Yuxin Deng:
1. Designed video illustrations.
Ting Sun:
1. Designed character roles for the Little Octopus game
2024/7/28 Sunday
Continue with respective processes
In late July, we gradually completed the work of the first ten days and designed new mascots and posters in the latter half of the month.
Yixuan Xiao:
1. Designed a new mascot.
2. Design new forms of web pages.
Binghan Yang:
1. Created cartoon animations.
2. Created a check-in poster.
2024/8/3 Saturday
Continue to draw web pages and design small illustrations of web content.
In August, we will continue to draw and modify the first image of the webpage, while also starting to design small illustrations and some activity illustrations within the webpage.
Sun He:
1. Customize peripherals.
2. Add multilingual versions of Uygur and Korean to the picture book Invisible Bacteria.
3. Designed and drawn Education page Wider and Deeper images, as well as PDCA loop images and cognitive development theory images.
4. Designed and drew an education tree image for the Education webpage.And drew balloons and content on the education tree.
Yixuan Xiao:
1. Continued updating the Attributions webpage and the Safety webpage header image.
Binghan Yang:
1. Designed the typesetting of SYNO cards.
2024/8/12 Monday
Continue to design illustrations and homepage images
During this period, we will continue to work in an orderly manner according to each person's schedule.
Sun He:
1. Created a title image for the education page.
2. Design and draw the characters of Ciose the loop and the dialog box in the web page.
3. They summarized and drew the statistical results of the questionnaire.
4. Took pictures of the team's surroundings.
Yixuan Xiao:
1. Updated the Education webpage and was responsible for the homepage image of the Responsible for the world page.
Binghan Yang:
1. SYNO card instructions.
Yuxin Deng:
1. Draw the sixth issue of the blog cover.
2024/8/18 Sunday
Update event illustrations, webpage illustrations, and event illustrations
This week, we advanced web and game design, and also designed a team baseball hat.
Sun He :
1.A picture book was added.
2. We have designed the iGEMers Day seal.
Xiao Yixuan :
1.Design the Integrated Human Practices page.
Ting Sun :
1.Make small octopus games.
Binghan Yang:
1. Design the team baseball caps.
2.The card was typified.
3.Typoed the card manual.
2024/8/24 Saturday
Continue to design webpage content and activity illustrations
We are gradually producing website content and manuals, rearranging them
Sun He :
1. Designed the web drop pdown.
Yixuan Xiao:
1.Design the Education page.
Binghan Yang:
1.The Synthetic Biology Manual was typographed.
Deng Yuxin and Yang Binghan jointly drew the small animals in the puzzle game.
2024/9/7 Saturday
Preparation of manuals and business plans
During this period, we have created a large number of web page icons and illustrations, while continuing to update game illustrations.
He Sun:
1. Design webpage icons and illustrations
Yixuan Xiao:
1. Cover image of business plan involved
Binghan Yang:
1. Revised the layout of the manual.
Ting Sun:
1. Completed the cover and ending images of the Little Octopus game
2024/9/13 Friday
Create webpage illustrations and manual layout
This week, we continued to work on website icons, manual layout, and game manuals
He Sun:
1. Continue designing webpage icons and illustrations
Binghan Yang:
1. Draw illustrations。
Ting Sun:
1. Typesetting Octopus Game Manual
2024/9/15 Sunday
Drawing of webpage identifiers
This week, we will continue to work on the internal icons of the webpage and the layout of some manuals。
He Sun:
1. Integrated Human Practices diagram has been created
Binghan Yang:
1. Design loading background.
2024/9/21 Saturday
Manual drawing, manuscript writing, and page drawing
In late September, we almost completed the design of the first image of the webpage and gradually improved the small and icons inside the webpage. At the same time, the Little Octopus game is coming to an end。
He Sun:
1. Drafted the surroundings of iGEMer's Day and Home page materials
Yixuan Xiao:
1. Made the background map of official account
Binghan Yang:
1. Created a contribution page
Yuxin Deng:
1. Designed the cover and back of the ethics manual, and formatted both Chinese and English versions
Ting Sun:
1. Written the Octopus Protocol manual, game objectives, and three Octopus animations.
2024.1.17 Wednesday
Translation and Refinement of Team Member Introductions
Following our first iGEM team meeting, where all members met for the first time and introduced themselves, two Pre team members (Ziming Zhong, Adila) gathered self-introductions and personal photos from everyone. We handled the translation and proofreading, then compiled everything for use on the Wiki Team Members page.
Adila:collected the self-introduction drafts and personal photos of the team members, providing an initial translation and organization.
Ziming Zhong:revised and polished the self-introduction drafts and organized them for future reference.
2024.2.25 Sunday
Initial Brainstorming and Planning for the Promotion Video
During the winter holiday, we brainstormed initial ideas for the promotion video, including the innovative idea of incorporating a "Heart Disease Song," and discussed them with the team members.
Adila:came up with fresh ideas for the promotion video shoot, organized them, and submitted the summary to Ziming Zhong.
Ziming Zhong:summarized and presented the video shoot ideas, then discussed them with the team members and PI to plan the initial tone and direction for the promotion video.
2024.02.28 Wednesday
Following the HP team's online event on Tencent Meeting, themed "Journey into Synthetic Biology," with 265 middle school students from Zichuan Economic Development Experimental School, we translated the event report from Chinese to English, polished the details, and stored it for future use in our Wiki.
Ziming Zhong: Completed a thorough review of the Chinese draft and introduced fresh ideas, shaping the main theme. Additionally, conducted a second round of revisions, proofreading, and refining the English version of the event report.
Adila: Designed the overall writing framework and completed the main translation work, made revisions and adjustments to refine the content.
2024.03.01 Friday
Following the successful completion of the "iGEM: Exploring the World of Synthetic Biology" event at Zibo No. 4 High School, we translated the event report from Chinese to English, carefully reviewed and refined the content, and archived it for future reference in our Wiki.
Adila: Revised the Chinese version of the event report and translated it into English.
Ziming Zhong: Conducted a second round of revisions, proofreading, and refining of the English version of the event report.
2024.03.13 Wednesday
Translating and Refining the Popular Science Brochure
After the HP team completed the Chinese version of our team's Synthetic Biology Popular Science Brochure Synthetic biology:The "Lego" of biology, we handled the editing and revision of the English version.
Adila: Completed the revisions for the Chinese version of the science brochure and translated it into English.
Ziming Zhong: Completed the second round of revisions and polishing for the English translation.
2024.03.28 Thursday
Following the HP team's educational event at Yitong No.1 Middle School, with the theme "What is iGEM?", we translated the event report from Chinese to English, polished the content, and saved it for future reference in our Wiki.
Adila: Revised the Chinese version of the event report and translated it into English.
Ziming Zhong: Conducted a second round of revisions, proofreading, and refining of the English version of the event report.
2024.04.01 Monday
Refining the Picture Book Invisible Bacteria
We revised and polished the English manuscript of our team's original children's picture book Invisible Bacteria.
Adila: Completed the first round of editing and revisions on the children's picture book manuscript.
Ziming Zhong: Completed the final revisions and proofread the manuscript of the children's picture book , submitted it to the Wiki team members.
2024.04.04 Thursday
After successfully hosting the "Step into Synthetic Biology" education event at the International Department of the Experimental School Attached to Jilin University, we translated the event report from Chinese to English, reviewed and refined the content, and archived it for future reference in our Wiki.
Adila: Revised the Chinese version of the event report and translated it into English.
Ziming Zhong: Conducted a second round of revisions, proofreading, and refining of the English version of the event report.
2024.04.16 Tuesday
After the HP team completed the educational event at Shuxun Primary School, titled "Entering the Kingdom of Cells," we translated the event report from Chinese to English, made necessary revisions, and archived it for future use in our Wiki.
Adila: completed a thorough review of the Chinese draft and made adjustments to the overall logical structure, and then handled the main translation work.
Ziming Zhong: Conducted a second round of revisions, proofreading, and refining of the English version of the event report.
2024.04.22 Monday
Following the HP team's seminar at Jilin University Affiliated Middle School, titled "Synthesizing the Future: Science Popularization Seminar," we translated the event report from Chinese to English, refined the content, and saved it for future reference in our Wiki.
Adila: Revised the Chinese version of the event report and translated it into English.
Ziming Zhong: Carried out a detailed second review of the English report.
2024.04.28 Sunday
After the HP team completed the "Design the Heart in Your Mind" educational workshop at Jilin University Affiliated Middle School, we translated the event report from Chinese to English, refined the content, and archived it for future use in our Wiki.
Adila: Revised the Chinese version of the event report and completed the main translation work.
Ziming Zhong: Led a meticulous second review of the English version, incorporating thorough proofreading and refinement to polish the report.
2024.05.03 Friday
After the HP team held the education outreach at Changchun No. 17 High School, themed "Discovering the Romance of iGEM: A Symphony of Science and Art," we translated the event report from Chinese to English, refined the content, and archived it for future reference in our Wiki.
Adila: Revised the Chinese version of the event report and translated it into English.
Ziming Zhong: Conducted a second round of revisions, proofreading, and refining of the English version of the event report.
2024.05.14 Tuesday
Translation and Refinement of SYNO Game instructions
Once the HP team created our innovative synthetic biology promotion game SYNO, we translated the design principles and rules into English, refining and polishing the content to perfection.
Adila: Completed the revisions for the Chinese version of the game instructions and translated it into English.
Ziming Zhong: Completed the second round of revisions and polishing for the English translation.
2024.06.13 Thursday
After the successful completion of the "Exploring Microorganisms" educational event at Jiefang Road Primary School, we translated the event report from Chinese to English, refined the content, and archived it for future reference in our Wiki.
Adila: Revised the Chinese version of the event report and translated it into English.
Ziming Zhong: Conducted a second round of revisions, proofreading, and refining of the English version of the event report.
2024.07.15 Monday
1st group meeting on EDU page Discussion
Following the completion of the majority of our education activities, we held our first meeting with HP team members to exchange ideas for the layout and content of the Education page. Through this Meeting, we developed an initial framework with seven key sections, shaping the foundation for the page's structure and writing.
Ziming Zhong: Helped develop the overall structure for the Education section, suggesting themes including idea workshops and multi-sensory learning. He also ensured that the content was coherently organized and stayed actively involved in managing the writing process.
Adila: contributed ideas to help establish the framework for the Education section, suggesting section titles such as "Edutainment." She also prepared a plan for translating the manuscript after the framework was finalized.
2024.08.06 Tuesday
First Round of EDU Document Revision
After establishing the framework, we carried out the first round of English translation and revisions for the Education section. This included carefully refining the language to ensure clarity, coherence, and ensure it was polished and engaging, setting the stage for future content development and finalization.
Adila: Completed the revisions for the Chinese version of the education documents, ensuring accuracy and consistency, then translated the content into English, maintaining the core meaning and intent throughout.
Ziming Zhong: Took charge of refining and polishing the English translation, focusing on improving clarity, readability, and overall coherence for the final version.
2024.08.14 Wednesday
Second Round of EDU Document Revision
Building on the first round of translation and revisions, and considering the substantial volume of content in the Education section, we performed a comprehensive second review. Through meticulous polishing, we ensured that the content was not only engaging and coherent but also fully optimized and ready for seamless integration into the Wiki page.
Adila: Focused on correcting details in the translated text, adjusting terminology, ensuring consistency in tone, and proposing improvements for certain sections to make the content more engaging. She also provided specific feedback on areas where clarity could be enhanced.
Ziming Zhong: Concentrated on improving the overall flow of the document, reworking sentence structures for better readability and ensuring a logical progression of ideas. He also refined the transitions between sections to create a cohesive narrative for the Wiki page.
2024.08.18 Sunday
English Adaptation of "My Little Octopus"
After successfully developing and launching the Chinese version of our original game "My Little Octopus," we began work on the English adaptation.This included not only translating the language but also adjusting the tone and expressions to ensure the game feels natural and engaging for a global players.
Adila: managed the translation and localization of the game's tutorials, settings, key gameplay elements, and dialogues for English players.
2024.08.20 Tuesday
2nd group meeting on IHP page Discussion
In this meeting, we worked with the HP team members to plan how to present the IHP section on our Wiki page.We reviewed the activities we've completed so far, refined the narrative structure to ensure clarity and flow, and reached a shared understanding on how best to present our work.
Ziming Zhong:offered suggestions for the design of the IHP page layout, refined the written content, and suggested improvements for the project's application aspects.
2024.08.23 Friday
Translation of the handbook "Ten Practical Tips for Cancer Prevention"
After the HP team completed the Chinese version of the "Ten Practical Tips for Cancer Prevention" public health guide, we translated and proofread the content to produce the English version, ensuring it was clear and well-suited for global audience.
Adila: translated and adapted the Chinese manuscript into English, refining and proofreading the content to ensure clarity and accuracy throughout.
2024.08.26 Monday
Promotion Video Creation
After thorough discussions with all team members and our PI, and refining the initial design for the promotion video, we established a clear direction for the shoot. Collaborating with the Wiki and Experimental teams, we successfully completed both the production and editing, bringing the final video to completion.
Ziming Zhong: responsible for writing the script for the promotion video and developing the overall filming plan. He worked closely with the Wiki and Experimental teams on editing, and also took charge of composing and recording the opening song for the video.
2024.09.10 Tuesday
Revising the Collaboration Page
Adila: revised and restructured the layout of the collaboration page, refined the English expression and improved the focus and logical flow of the content.
2024.09.22 Sunday
Preparation For the Presentation Video
After a thorough brainstorming session and extensive discussions with all team members and our PI, we have finalized the shooting plan for the presentation video and completed the script. With this, all tasks of the Pre team have been successfully completed, and we are now focusing on preparing for the final presentation. We are excited to showcase our hard work at the upcoming Jamboree!
Ziming Zhong: revised and integrated the script for the presentation video, developed the shooting plan, and managed the filming process.