Team:British Columbia/Notebook

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British Columbia - 2012.igem.org

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June 5th

Grew cell cultures of EPI 300, BL21, and DH5α, with plasmid PIJ 790 in them, harvested, and stored at -80 freezer.

-Ruichen

June 6th

Learned how to electrophorese cells with biobricks (1-7B, 2-17F, 2-14N, 2-9B, 3-13M, 3-14E, 4-3I, 5-1A, 5-12O), and plated them on plates to grow colonies.

Tested KAN plates with control.

-Ruichen

June 7th

Retreated the plates previously spread, KAN plates worked and most of them grew into colonies or covered plates completely. (advised to spread the plates with 50µl recovered cells instead 100µl in the future for better colony identification).

Made more antibiotics of Amp (10µg/ml) and Chlor (34µg/ml), and more agar plates of (Amp and Chlor) (half bagful respectively).

Electrophoresed 1-1N, 2-2K, 1-5P, 2-21O using DH5α, and plated them.

-Ruichen


In the afternoon, we (Ruichen, Mehul, Grace) made many more K12 competent cells, which we put into storage. (The protocol is now on the wiki.) There was also talk from Jacob and John about buying $0.50 worth of gasoline/diesel from the nearest gas station to test solvent resistance of some of our cells. I left before that happened, though. (Would have been fun to see the attendant's reaction!)

- grace

June 8th

Tried to make more EPI300 cells, though no obvious growth even after hours for the second time, and decided to leave it over night to see if there are any changes.

Electrophoresed K12 with PIJ 790 plasmid, and plated them on Chlor plates with control plates to examine the plates.

- Ruichen

June 9th

The EPI300 did grow!

- Ruichen


Bought $1 of 91 octane (no ethanol) gas from the Shell on 10th. It's in a red jerrycan in the flammables cabinet near our bench.

JohnHenry 14:31, 9 June 2012 (CDT)

June 9th

Experiment plan for week of June 10-16th:

1) Kill Switch Assay for Colicin E7, Colicin E2, BamH1, H2O2 Colicin E7: There is currently a plate of K12 cells with protein immunity and Colicin E7. Lysis protein (cuts the immunity gene to allow for Colicin E7 production) will be transformed into K12 (Sat). Cultures will be set up for both the protein immunity+Colicin E7 and the Lysis (Sun). The two cultures will be mixed and grown up to correct OD then plated (Mon). Plates will be checked for growth (Tues).

Colicin E2, BamH1, H2O2: There are currently plates of K12 cells with Colicin E2 and H2O2s. Colonies will be picked and cultures will be set up for each of these (Sat). The cultures will be grown to correct OD and induced then plated (Sun). Colicin E2 is induced low concentration of ampicillin, BamH1 is induced with arabinose, and H2O2 is induced with 2nM of AHL. Plates will be checked for growth (Mon). BamH1 will be transformed into K12 cells and plated (Sat). Same steps will be taken as above and plates will be checked for growth (Tues).

2) Solvent Tolerance Assay Cultures of K12 cells with 3I plasmid will be set up (9am on Sun) in gasoline and pentane. OD will be checked every hour for 12 hours or less until stable phase (Sun). Protocol is on the TU Delft 2010 page [1].

3) PCR RFP, YFP, GFP on to pcc1 fosmid There will be a PCR tutorial on Thursday 6pm with the primers for putting the RFP, YFP, and GFP from the biobrick on to pcc1 fosmids.

- Marianne