Team:ZJUT China B/Notebook

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Team:ZJUT China B/Wetlab/Notebook-2020.igem.org

Jul

Data Classification Experimenter Experiment Experimental results
2020/7/24 Cas 13a&b Qian Rong、Yuanying Wang Transform Psm、Lba transformed successfully;Lwa failed
2020/7/25 Cas 13a&b Yuzhi Wang、Ziyan Huang Psm Plasmid extraction The Psm plasmid concentration is 48.2ng/ul
2020/7/26 Cas 13a&b Yuzhi Wang、Ziyan Huang Prepare E.coli BL21 competent cells The Psm plasmid concentration is 48.2ng/ul
Yuanying Wang、Mengying Wang Lba and Lwa are transformed into DH5α competence cell Lba transformed successfully;Lwa only grows a few single colonies
2020/7/27 Cas 13a&b Yuanying Wang、Mengying Wang Vaccinate and transform
Cas 13a&b Yuzhi Wang Lba+Lwa Plasmid extraction Lba:65.2ng/ul;Lwa:49.5ng/ul
2020/7/28 Cas 13a&b Ziyan Huang Prepare E.coli BL21 competent cells 6 tubes
2020/7/29 Cas 13a&b Yuanying Wang、Mengying Wang Lba、Psm and Lwa are transformed into BL21 competence cell 6 tubes
2020/7/30 Cas 13a&b Qian Rong、Mengying Wang Expression 1.0——Expand cultivation and induction Shake flask overnight culture OD over 1.0

Aug

Data Classification Experimenter Experiment Experimental results Note
2020/8/1 Cas 13a&b Yuzhi Wang Bacterial precipitation collection + fragmentation + Lwa protein purification (1) No target protein
2020/8/3 Cas 13a&b Qian Rong、Yuanying Wang Expression 2.0——Expand cultivation and induction No target protein
2020/8/5 Cas 13a&b Qian Rong Bacterial sediment collection and fragmentation Bacterial sediment quality——Lba:0.965g;Lwa:0.698g;Psm:0.691g
Cas 13a&b Yuzhi Wang Lba, Lwa protein purification (2) +SDS-PAGE No peak, no target protein
2020/8/6 Cas 13a&b Qian Rong Expression 3.0——Expand cultivation and induction
2020/8/7 Cas 13a&b Qian Rong Bacterial sediment collection Lwa:0.411g,Lba:0.460g,Psm:0.551g
2020/8/8 Cas 13a&b Yuzhi Wang Break bacterias+SDS-PAGE The target protein band is light
Cas 13a&b Yuzhi Wang Lba purification No peaks
2020/8/9 Cas 13a&b Yuzhi Wang Purified green fluorescent protein Have peaks Prove that there was no problem with Ni-NTA and buffer
2020/8/12 Cloning Ziyan Huang sumo tag amplification There is a bright fragment band
2020/8/13 Cloning Ziyan Huang SUMO tag purification Sumo concentrations are 87.6 and 79.6ng/ul
2020/8/14 Cloning Ziyan Huang Psm Cas 13b、Cca Cas 13b plasmid linearization and purification There is a bright fragment band,concentrations are 131.0 and 124.0ng/ul
Cloning Ziyan Huang Recombination reaction
2020/8/15 Cloning Ziyan Huang、Yuzhi Wang Recombinant plasmid transferred into DH5α failed
2020/8/16 Cloning Ziyan Huang Recombinant plasmid transferred into DH5α failed
2020/8/17 Cas 13a&b Yuanying Wang Transform
Cloning Ziyan Huang Recombination reaction + recombinant plasmid transfer into DH5a Grow three single colonies
2020/8/18 Cloning Ziyan Huang Colony PCR identification 1.0 Only w3 single colonies have bands
2020/8/19 Cloning Ziyan Huang Colony PCR identification 2.0 Only w3 single colony showed clear bands, w1 bands were mixed.
2020/8/20 Cloning Ziyan Huang Recombination reaction Transform the recombinant plasmid into DH5a
2020/8/21 Cloning Ziyan Huang Transform the recombinant plasmid into DH5α
Cas 13a&b Yuzhi Wang Transform There are many single colonies Lba, Lwa transform to Rosetta; Lba, Lwa, Psm transform to DH5alpha
2020/8/23 Cas 13a&b Yuzhi Wang PCR、SDS-PAGE Most single colonies were successfully transformed
Cloning Ziyan Huang Sumo tag amplification and Psm Cas 13b、Cca Cas 13b plasmid linearization + purification + recombination reaction The Psm Cas 13b、Cca Cas 13b plasmid has obvious bands, the concentration is 10.7ng/ul, and the sumo fragment concentration is 46.4 and 48.7ng/ul.
2020/8/24 Cloning Ziyan Huang Transform the recombinant plasmid into DH5α There are many single colonies
Cas 13a&b Yuzhi Wang、Xiaojie Zhou 9:30 Lba, Lwa pre-incubation 5ml test tube each All turbid
Cas 13a&b Yuzhi Wang、Xiaojie Zhou 18:00 Expansion culture, one bottle each of 100ml shake flask Turbid before clarification Stained with phage (maybe shaker, shaker bottle, gauze)
Cas 13a&b Yuzhi Wang、Xiaojie Zhou 21:30 Expansion culture, one bottle each of 100ml shake flask Turbid after 3h Changed the shaker
2020/8/25 Cas 13a&b Yuzhi Wang、Xiaojie Zhou 00:30 Add IPTG to induce expression
Cas 13a&b Xiaojie Zhou 11:30 Lba and Lwa pre-cultured 5ml test tube each
Cas 13a&b Qian Rong 16:30 Collect bacterial pellet
Cas 13a&b Yuzhi Wang 20:00 SDS-PAGE Lba expressed successful, Lwa failed The precipitation is more obvious than the supernatant band: it may be related to the loading concentration, or some proteins may form inclusion bodies
Cloning Ziyan Huang Colony PCR identification and recombination C2, c8, c10 single colonies have obvious bands
Cas 13a&b Yuzhi Wang、Xiaojie Zhou 23:00 expand culture, 1 bottle of 100ml shake flask each The bacterial liquid is turbid after 2h
Cas 13a&b The bacterial liquid becomes clear after 2.5h
2020/8/26 Cloning Ziyan Huang Psm Cas 13b、Cca Cas 13b plasmid extraction The concentrations of the Psm Cas 13b、Cca Cas 13b plasmids were 46.3, 28.1, 31.9 ng/ul
Cas 13a&b Yuzhi Wang、Xiaojie Zhou Break bacterias containing Lba protein Since the lysate contains reducing agent, it is not good for Ni-NTA, purification is terminated
Cas 13a&b 8:00 Lba, Lwa pre-cultured 5ml test tube each 1 tube After culturing for 10 hours, the bacterial solution is not turbid enough and contains cell debris The test tube is stained with bacteriophages. Borrow new test tubes and shake flasks to prepare the medium
2020/8/27 Cas 13a&b Yuzhi Wang、Xiaojie Zhou 8:30 Lba, Lwa pre-incubation 5ml test tube 2 tubes each 18:00 Lwa1 tube is turbid, 1 tube is clarified; Lba are all clarified;
Cas 13a&b 20:00 Lba has 1 tube also muddy unusual
Cas 13a&b 18:30 Lba pre-culture 5ml test tube 5 tubes After 12h, 1 tube was turbid, 2 tubes were turbid, and 2 tubes were clear
Cas 13a&b 20:30 Lba and Lwa expansion culture 100ml shake flask 2 bottles each
Cas 13a&b 21:00 PCR Lba has 13 transformants
2020/8/28 Cas 13a&b Xiaojie Zhou 6:00 SDS-PAGE Only one has obvious banding
Cas 13a&b Yuzhi Wang 6:30 Transfrom Lba has six transformants; Lwa has a transformant
2020/8/29 Cas 13a&b Xiaojie Zhou PCR、SDS-PAGE No obvious bands
Cas 13a&b Yuzhi Wang Lba、Lwa pre-culture one test tube for each of seven transformants
Cloning Ziyan Huang PCR
Cas 13a&b Yuzhi Wang、Xiaojie Zhou SDS-PAGE Lba has no obvious bands, Lwa has bands
2020/8/30 Cas 13a&b Yuzhi Wang Lba,Lwa Plasmid extraction Concentration is too low
Cas 13a&b Yuzhi Wang Lba and Lwa inoculation, two tubes each
2020/8/31 Cas 13a&b Yuzhi Wang Lba,Lwa Plasmid extraction Lba1:45.6ng/ml;Lba2:48.9ng/ml;Lwa1:50.9ng/ml;Lwa2:41.4ng/ml
Cas 13a&b Yuzhi Wang SDS-PAGE Lba1, Lba2, Lwa1 have obvious bands, Lwa2 has no obvious bands
Cas 13a&b Yuzhi Wang Transfrom Pam and Lba have many transformants, but Lwa does not Psm is transformed into DH5α competence cell;Lba、Lwa are transformed into Rosetta

Sep

Data Classification Experimenter Experiment Experimental results Note
2020/9/1 Cloning Ziyan Huang、Yuzhi Wang PCR
Cas 13a&b Yuzhi Wang SDS-PAGE Lba has no band; Lwa has bands; Psm is not ideal
Cas 13a&b Yuzhi Wang SDS-PAGE Lba transformant 8 has a band; Pam transformants 1, 2, 3, 4, 5, 8 have bands; Lwa1 and 4 plasmids have bands
2020/9/2 Cas 13a&b Yuzhi Wang 9:00 pre-culture Lba×5 Lwa×2 Psm×2 Lba is used for expression, Lwa and Psm are used for plasmid extraction
Cas 13a&b Lba becamr clarified after 10h Phage
Cas 13a&b Lba became clarified
Cas 13a&b Psm became turbid normal
Cas 13a&b Ziyan Huang、Yuzhi Wang Lba PCR tdirteen transformants
Cas 13a&b Psm Plasmid extraction tde resulting psm plasmid concentration is 39.3 and 52.9ng/ul
Cas 13a&b SDS-PAGE tdere are obvious bands
2020/9/3 Cas 13a&b Xinyu Wan、Yuzhi Wang Lba pre-culture (test tube × 4) fail fail
Cas 13a&b Lwa are transformed into Rosetta
2020/9/4 Cas 13a&b Xinyu Wan、Yuzhi Wang Lba pre-culture success
2020/9/5 Cas 13a&b Xinyu Wan、Yuzhi Wang Lwa expands training fail fail
Cloning Xiaojie Zhou 9:00-12:00 Psm Cas 13b、Cca Cas 13b dHis-1 PCR tde tdree plasmid products of one-step cloning were all subjected to PCR
Cloning 12:30 PCR products SDS-PAGE tde band is slightly weaker, but tdree of it are successful
Cloning 13:00-14:00 dHis-1 PCR product digestion
Cloning 14:00-16:00 Psm Cas 13b、Cca Cas 13b are transformed into DH5α competence cell
2020/9/6 Cloning Xiaojie Zhou 13:00 Pick Psm Cas 13b、Cca Cas 13b dHis-1 single colony culture Pick five single colonies
2020/9/7 Cloning Xiaojie Zhou 7:30 Psm Cas 13b、Cca Cas 13b dHis-1 Plasmid extraction The concentrations are 62.7, 29.8, 33.2, 39.6, 51.8ng/uL
Cloning Xiaojie Zhou Streaked live bacteria 106096, 94205, 107838, 330-106 Just for sequencing
Cas 13a&b Xinyu Wan、Yuzhi Wang Lwa pre-culture fail
Cas 13a&b Xinyu Wan、Yuzhi Wang Psm transformed into Rosetta The original plasmid
2020/9/7-8 Cloning Xiaojie Zhou Psm Cas 13b、Cca Cas 13b dHis-1 delivery test result 1、2、3、5 has no bands, no sequencing is arranged, 4 is successful and His-1 is successfully removed after comparison We should do SDS-PAGE after extracting the plasmid to see if the plasmid is actually proposed and the plasmid is the target plasmid
Cloning Xiaojie Zhou Psm Cas 13b、Cca Cas 13b dHis-2 PCR Take the No. 4 template and configure 3 systems (the PCR in the morning was not scheduled and the experiment progress was delayed by another day)
Cloning Xiaojie Zhou TDPs pick single clones into test tubes
Cloning Xiaojie Zhou Psm Cas 13b、Cca Cas 13b dHis-2 PCR product SDS-PAGE There are obvious bands
2020/9/8 Cas 13a&b Xinyu Wan、Yuzhi Wang Psm pre-culture Success
Cas 13a&b Xinyu Wan、Yuzhi Wang 18:00 Psm expand training Success
Cas 13a&b Xinyu Wan、Yuzhi Wang 20:00 add IPTG Fail The next morning, the bacterium liquid became clear, because of the phage
2020/9/9 Cloning Xiaojie Zhou TDPs Plasmid extraction
Cloning Xiaojie Zhou 13:00 Psm Cas 13b、Cca Cas 13b dHis-2 PCR product digestion
Cloning Xiaojie Zhou 14:00-16:00 transformed into DH5α competence cell
Cas 13a&b Xinyu Wan、Yuzhi Wang Psm pre-culture Success Bacteria is not too thick
Cas 13a&b Xinyu Wan、Yuzhi Wang 18:30 Expanded training×2 In the shaker on the fourth floor, one bottle is successfully stained with phage
Cas 13a&b Xinyu Wan、Yuzhi Wang 21:30 add IPTG The next morning, the bacterial liquid became clear, but slightly turbid; it almost became clear at noon, and the phage infection was severe
Cas 13a&b Yuzhi Wang 21:00 Expanded training × 2 fail Shaker on the first floor, both bottles are stained with phage
2020/9/10 Cloning Xiaojie Zhou 12:30 Pick Psm Cas 13b、Cca Cas 13b dHis-2 single colony to test tube
Cloning Xiaojie Zhou TDPs sequencing results The result shows that 94205 has a problem
TDPs Jiangxiaojie Zhang、Xinzhi Zhou gfp、106094、330-106、33020transformed into BL21 competence cell The transformation was successful, but the coating did not form a single colony The bacterial solution is not dry, and it does not dry after 1h
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang 13:00 Plasmid PCR
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang 15:00 cancel template
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang 18:30 Purification
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang 20:00 SDS-PAGE Fail Suspected of primer
Cas 13a&b Yuzhi Wang、Qian Rong、Yuanying Wang Lwa、Lba transformed into Rosetta
2020/9/11 Cas 13a&b Yuzhi Wang 9:00 pre-cultivation of Lba and Lwa
Cas 13a&b Yuzhi Wang 19:00 Expanded culture (Lba×2, Lwa×2) Lwa1 stained phage
Cas 13a&b Yuzhi Wang 21: 00 IPTG induction 2 bottles of Lba bacteria liquid are more concentrated, Lwa2 becomes slightly clear
2020/9/12 Cloning Xiaojie Zhou 7:30 Psm Cas 13b、Cca Cas 13b dHis-2 Plasmid extraction
TDPs Jiangxiaojie Zhang、Xinzhi Zhou 15:00 gfp, 106094, 330-106, 33020 coating There are satellite colonies, but after consulting the information, it is said that the impact is not significant
Cas 13a&b Qian Rong Collect the bacterial pellet Lba, Lwa
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang 9:00 SARS-CoV-2 PCR and SDS-PAGE fail
14:00 SARS-CoV-2 and H1N1 PCR and SDS-PAGE SARS-CoV-2 fail, H1N1 success
17:00 H1N1 elimination template
19:00 H1N1 purification and SDS-PAGE success
Cas 13a&b Yuzhi Wang SDS-PAGE Both Lba and Lwa have target bands
2020/9/13 Cloning Xiaojie Zhou Psm Cas 13b、Cca Cas 13b dHis-2 sequencing results His2 successfully removed
Psm Cas 13b、Cca Cas 13b transformed into DH5alpha
Lba transformed into Rosetta
Culture Lwa DH5alpha with Streak Plate Method Cooperation with ShanghaiTech University, they need this protein
TDPs Jiangxiaojie Zhang、Xinzhi Zhou 1:00 single colony culture success
20:00 Protein induced expression fail "It can be cultured for a period of Data before adding new medium before induction (optimization?) Inducer calculation error"
Cas 13a&b Yuzhi Wang Lba purification fail May be related to the machine
2020/9/14 TDPs Jiangxiaojie Zhang、Xinzhi Zhou 1:00 pick a small single colony shaker culture fail Proof that the small colonies are satellite colonies may be correct
6:30 Use 9/13 medium to induce pre-cultivation raise for a period of Data to test The phenomena are consistent, but GFP has no fluorescence and the induction fails It’s not clear, even used a microplate reader to test the lure
20:00 Induced expression of two groups of proteins The phenomena are consistent, but GFP has no fluorescence and the induction fails The fluorescence of the latter group is lower"
Sample processing Yuzhi Wang、Chaonan Fang、Xiaoqi Wang H1N1 measures DNA concentration
H1N1 transcription and purification
Cas 13a&b Yuzhi Wang 10:00 Lba pre-culture (×6)
2020/9/15 TDPs Xinzhi Zhou Save the bacteria after expression at 7:00 am Successfully saved
Jiangxiaojie Zhang、Xinzhi Zhou 4:00 re-coating Similar to the previous plate phenomenon, large and small colonies, similar in shape
Sample processing Yuzhi Wang、Xiaoqi Wang 8:00 H1N1 PCR
10:30 H1N1 elimination template
12:00 H1N1 purification
Cas 13a&b Yuzhi Wang 9:30 Lba expanded cultivation (×6)
17:00 IPTG induction
2020/9/16 Cas 13a&b Yuzhi Wang 7:00 Lba collection
10:00 SDS-PAGE No target band
9:30 Lba expanded cultivation (×6)
17:00 SDS-PAGE The target band of the protein supernatant is not obvious, and the precipitation band is obvious
21:30 IPTG induction
Sample processing Yuzhi Wang、Chaonan Fang、Xiaoqi Wang 11:00 transform
14:30 RNA purification and concentration measurement
19:00 RT-RPA, concentration measurement
TDPs Jiangxiaojie Zhang 7:10 Receive tablet
2020/9/17 Cloning Xiaojie Zhou 22:30 Pick a single colony of Psm Cas 13b、Cca Cas 13b (BL21) to test tube culture
22:40 Apply Rosetta tablet
22:50 Pick a single colony of Rosetta gami into a test tube
Cas 13a&b Yuzhi Wang 8:00 Broken bacteria
10:30 Lba purification
16:00 SDS-PAGE Only the flow-through liquid has bands, and the rest of the eluates have no bands
Qian Rong、Yuanying Wang 13:30 Collection of bacteria
Yuzhi Wang 19:30 SDS-PAGE
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang 9:00 DNA purification and concentration measurement
11:00 transform
14:00 RNA purification and concentration measurement
TDPs Jiangxiaojie Zhang、Xinzhi Zhou 1:00 single colony culture 106094 bacterial liquid is not very turbid
20:00 Protein induced expression fail prepare to verify whether the conversion was successful
2020/9/18 TDPs Jiangxiaojie Zhang、Xinzhi Zhou Pick four groups of GFP single colonies PCR running gel Two groups have bands, two groups do not 9.20 Continue the experiment
Cas 13a&b Yuzhi Wang 1L Lba ultrasonic disruption
2020/9/19 Cas 13a&b Yuzhi Wang、Xiaojie Zhou Lba first purification
Xiaojie Zhou SDS-PAGE
Ziyan Huang 3320,cca transformed into BL21 A large number of single colonies grow
2020/9/20 TDPs Xinzhi Zhou Pick 33020, 106094, 330-106 single colony PCR SDS-PAGE
Jiangxiaojie Zhang、Xinzhi Zhou Invert the plate, take the transformed colony and streak
Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang Transform
RNA purification
RT-RPA
Cas 13a&b Yuzhi Wang 8:00 Cca, 33020 pre-culture (each × 5)
20:00 Cca, 33020 expanded training (each × 5)
21:00 Lba pre-culture (×5)
22:30 Cca, 33020 induction
SDS-PAGE after Lba purification Lba is eluted in 250mM IM eluate
14:30-20:30 MBP digestion
21: 00-24: 00 Lba secondary purification
24:00—2:00 of the next day SDS-PAGE after secondary purification No banding Too much loss in the first purification, more loss in enzyme digestion, making the gel run after the second purification without bands and no target protein
2020/9/21 Sample processing Chaonan Fang、Xiaoqi Wang、Yuzhi Wang DNA purification and concentration measurement
Transform ×6
RNA purification and concentration measurement
Cas 13a&b Qian Rong、Yuanying Wang Cca, 33020 collection
Yuzhi Wang 15:00 Lba expansion training (×10) 4 bottles meet the requirements
18:30 Lba induction (×4)
2020/9/22 Cas 13a&b Qian Rong、Yuanying Wang Lba collection and breakage
Yuzhi Wang、Qi Rong、Yuanying Wang SDS-PAGE There is no target band, and the miscellaneous band is shallow It may be that the ice was not replaced in Data during the crushing process, and the protein was degraded
2020/9/25 Cas 13a&b Xinyu Wan Culture Cca with Streak Plate Method
2020/9/26 Cas 13a&b Xinyu Wan Cca pre-culture × 10
2020/9/27 Cas 13a&b Xinyu Wan Cca expansion × 20 fail Phage
Culture Lba with Streak Plate Method
Cca pre-culture × 10
TDPs Jiangxiaojie Zhang Select successful single colony to culture After culturing for 12 hours, there were almost no colonies. After 2 days, GFP formed single colonies, but the PCR results showed that it was not GFP The tablet is too long to be recoated
2020/9/28 Cas 13a&b Xinyu Wan、Yuzhi Wang Cca expanded culture ×10
Cca induced
TDPs Jiangxiaojie Zhang spread plate method success
2020/9/29 Cas 13a&b Qian Rong、Yuanying Wang Cca closed bacteria
SDS-PAGE Cca does not have any bands; Lba and 33020 bands are small in number and light in color
Yuzhi Wang Lba pre-culture ×15
TDPs Xinzhi Zhou PCR vaccination The PCR results were good and most of the colonies were converted successfully.
Jiangxiaojie Zhang The successful PCR bacteria were preserved
2020/9/30 TDPs Jiangxiaojie Zhang Adjust the ready protein expression The arrangement of the experiment was wrong. 3ml should be directly put into the test tube for sterilization, and it should be operated in the super clean table, which is inconvenient and easy to be infected with heterobacteria. Therefore, most protein expression groups were not carried out this Data
Cas 13a&b Yuzhi Wang 13:00 Lba expanded culture ×20 One bottles of sterile growth
15:00 Cca ultrasonic sterilization
16:00 Lba induced ×19
19:00 Lba expanded culture ×11 Two bottles of sterile growth
21:00 33020 Pre-culture ×10
22:00 Lba induction ×9
23:00 Purification of Cca once (1L)

Oct

Data Classification Experimenter Experiment Experimental results Note
2020/10/1 Cas 13a&b Yuzhi Wang 2:00 SDS-PAGE after one purification of Cca
3:30 Cca enzyme digestion and dialysis
Qian Rong、Yuanying Wang 9:30 Lba inoculation first batch
14:00 Lba inoculation of the second batch
Yuzhi Wang 21:00 Cca incubated for 1.5h
23:00 Expand culture ×17 of 33020
23:30 Secondary purification of Cca
TDPs Jiangxiaojie Zhang、Yi Fan Line the bacteria for preservation 4, 6, 7, 8, 10, 11, 15 growth of preservation bacteria, gun head suspected to be contaminated, only 33020 form a single colony.
Induced expression after culture on 29 September
2020/10/2 Cas 13a&b Yuzhi Wang 2:00 Induction 33020
3:00 SDS-PAGE after secondary purification of Cca
Qian Rong 13:00 Lba ultrasonic crushing
Qian Rong、Yuanying Wang 18:30 Collect bacterial precipitation of 33020
Yuzhi Wang 15:00 Lba incubation for 1.5h
17:00 Lba one purification
19:00 Cca preculture ×16
TDPs Jiangxiaojie Zhang GFP fluorescence detection There was no green fluorescence, and there was little change in the values measured by the enzyme marker
Line the bacteria for preservation GFP, 106094, formed a single colony
2020/10/3 Cas 13a&b Yuzhi Wang 2:00 SDS-PAGE after one purification of Lba Not pure
13:00 Lba incubation for 1.5h
15:00 The purification is repeated Lba
17:00 Cca expand cultivation ×30
21:00 After one purification of Lba SDS-PAGE
22:00 Cca induction ×30
22:30 33020 Incubation for 1.5h
TDPs Jiangxiaojie Zhang、Xiaojie Zhou Pick the fungus for PCR GFP1, 2 106094 1 and 2 single colonies may be successfully transformed
Jiangxiaojie Zhang GFP1, 2, 106094 1 and 2 were selected for culture and variable temperature induced expression All were cultured successfully, and only GFP1 106094 1 induced expression protein was detected visually
Fluorescence detection (UV lamp, enzyme marker) GFP was not significantly green, and the enzyme marker increased slightly, but the different concentrations of bacteria could not explain the problem
Jiangxiaojie Zhang 16:00 33020 Ultrasonic sterilization
2020/10/4 Cas 13a&b Yuzhi Wang 0:00 33020 once purification
3:00 SDS-PAGE after one purification of 33020
4:00 Lba, 33020 dialysis
22:00 33020 protein concentration
Qian Rong 14:00 Collect Cca bacterial liquid
Sample processing Xiaoqi Wang、Yuzhi Wang 15:00 Culture H1N1 with Streak Plate Method
Readout Xiaojie Zhou 18:00 Pretreatment of protein virus crRNA and other reagents
21:00 LwaCas protein activity test Failure. There was no significant difference in fluorescence between the experimental group and the blank group, but the fluorescence of the negative control group was higher than that of the blank group
2020/10/6 TDPs Jiangxiaojie Zhang 3:00 Inoculation 10.2GFP1, culture it in 37℃
9 :00 transfer
11:30 after induction with different IPTG, culture at 30 degrees overnight (12h) Fluorescence was not visible to the naked eye, and IPTG test showed no obvious induction
Sample processing Xiaoqi Wang、Yuzhi Wang 10:00 H1N1 preculture ×2
18:00 H1N1 expanded culture ×2
21:00 H1N1 induction
Cas 13a&b Yuzhi Wang 17:00 Cca was incubated for 1.5h
18:30 One purification of Cca
22:00 SDS-PAGE
Readout Xiaojie Zhou Rhodamine, FITC scanning attempt
2020/10/7 Cas 13a&b Yuzhi Wang 11:00 Cca was incubated for 1.5h
12:30 Single purification of Cca (2)
16:00 SDS-PAGE Only fluid penetration and 10 mM IM have target bands
20:00 Cca incubated for 1.5h
21:30 Single purification of Cca (3)
24:00 SDS-PAGE Only fluid penetration and 10 mM IM have target bands
2020/10/8 Cas 13a&b Yuzhi Wang 1:00 Condensed 33020
2:00 Lba enrichment
3:00 After enrichment SDS-PAGE Lba has obvious target bands, but there are miscellaneous bands
4:30 Lba digestion Lba
10:00 Cca bactericidal crushing
11:30 Lba enzyme digestion, 33020 concentration, Cca bacteria - destroying SDS-PAGE
15:00 Lba standard curve to calculate the concentration
2020/10/11 Readout Xiaojie Zhou The maximum excitation absorption was determined by rhodamine gradient scan failure The gradient is set, but the concentration is still too low
TDPs Jiangxiaojie Zhang、Xinzhi Zhou PCR, 10.3GFP, 10.3/106094, Zxj33020, Zxj106094 Most transformations are successful
cultivate GFP, 106094 ,eGFP Develop success
Preinduction adaptation eGFP thin
Induced expression overnight eGFP was successfully expressed and GFP had no green fluorescence
2020/10/12 Readout Xiaojie Zhou Rhodamine standard curve determination Theoretical maximum excitation launch attempt
TDPs Jiangxiaojie Zhang Culture 330-106 with Streak Plate Method No single colony was found
The eGFP and 106094OD values were measured and prepared with 3% glucose solution on the upper layer of the refrigerator OD was measured to prepare 10-4.5 power bacterial solution, which was prepared with glucose solution on the upper layer of refrigerator without bacterial membrane
2020/10/15 TDPs Jiangxiaojie Zhang EGFP and 106094 were cultured for 6h.Treatment before induction for 1h, induction overnight, check for fluorescence With the fluorescent After induction, the bacteria solution was put in the refrigerator, packaged and waited for OD freeze-drying test
Observe the results of YuZhi Culture 33020 and 33-106 with Streak Plate Method There are single colonies on the culture medium
Cas 13a&b Yuzhi Wang 22:00 Culture 33020 and 33-106 with Streak Plate Method
24:00 Psm bacteria suspension
2020/10/16 Cas 13a&b Yuzhi Wang 1:00 Psm ultrasonic demulsification
3:00 Psm was incubated with Ni column
3:30 Prepare buffer
5:00 Psm purification one Data
22:00 SDS-PAGE
24:00 Psm bacteria suspension
TDPs Jiangxiaojie Zhang PCR 33020 and 330-106 had 123 colonies, respectively fail High probability operation problem
Readout Xiaojie Zhou Gain value exploration of LWA dynamic curve About 150 is a good choice
2020/10/17 Cas 13a&b Yuzhi Wang 1:30 Psm ultrasonic crushing
3:30 Psm was incubated with Ni column
4:00 Prepare buffer solution
6 :00 Psm purification
10:30 SDS-PAGE
14:30 Concentration of Psm protein
Readout Xiaojie Zhou Lwa probe specificity was determined by X2
TDPs Xinzhi Zhou
Jiangxiaojie Zhang IPTG induction group 3
Inoculation and cultivation, preferential treatment
2020/10/18 Cas 13a&b Yuzhi Wang 18:00 Psm measurement concentration 1211.5632ng/ul
Readout Xiaojie Zhou Lwa lyophilized protein activity assay The protein activity decreased obviously
Lba activity detection and kinetic curve determination There was a large gap between the parallel groups with little protein activity
The dynamics curve of lBA experiment was determined after optimization The data are much more accurate than before, but the protein activity is still very weak
2020/10/19 Readout Xiaojie Zhou Lwa virus concentration gradient experiment Because the group setting is too small, the virus concentration detection limit of LWA is not tested
PSM dynamics curve
PSM probe specific kinetic curve The gian value of 150 results in a fluorescence value of extraordinary, and FAM channel has no fluorescence value data, terminating the experiment
Gain value exploration of PSM probe specificity experiment The best gain value was 130 when the specificity of PSM was determined
Lwa, PSM mixed specificity determination 1 Because the experiment design is wrong, the group is not set clearly, so try again
2020/10/20 Readout Xiaojie Zhou Lwa, PSM mixed specificity determination 2 The grouping of the experiments is still not thoughtful enough