Wednesday 23rd July

Lab work

C - The Suppressing Salicylate System

Rehydration of BioBricks

by Fabio

The first step of this Subproject is to rehydrate the following BioBricks. Both provided in the iGEM 2014 DNA Kit Distribution.

• BBa_J61051 - Salicylate promoter + NahR
• BBa_K228001 - RNA suppressor

B - Lemon scent

p cola part 2

by Sean

p cola DNA was extracted in several instances yesterday. Today we attempt to collect all of the DNA and precipitate it.

Protocol

1. Add equal parts plasmid DNA and ethanol 100% in a 1.5 microcentrifuge tube.
2. If total volume is V, then add V/5 of sodium acetate (initial concentration of NaAc is 3M; we want a final concentration of .3M). Numerical application: Total volume of p cola was 150μl. Hence 150 μl of ethanol 100% was added, as well as 30μl of NaAc 3M. Incubate at -20°C for 30 minutes. (5:20pm - 5:50pm in our case)
3. Centrifuge for 10 minutes at 4°C and at 11000g.
4. Discard supernatant.
5. Add 1ml of ethanol 70%.
6. Repeat step 3.
7. Discard supernatant. Make tube interior as dry as possible. Tip: use a paper towel on which to lightly tap the rim of the tube. Dry pellet in oven at 37°C. Note: we decided to leave the tube at room temperature and continue tomorrow instead.
8. (tomorrow) Resuspend pellet in 30μl H₂O milliQ.

Modeling

Meeting of modeling with advisor Claire to talk about:

• Diffusion of O₂ in the gel
• Bacterial growth on the surface
• translecture system
• Diffusion of the limonene

Reunion

Handled topics:

• Collaborations with Colombia, Paris Bettencourt and Virginia
• Organisation of the Meeting with french teams
• Definitions of the sub projects
• Definitions of notebook's standards
• Organisation of the Wiki
• Great discussion about Human Practices

Members there:

• Instructors and advisors: Solenne and Sylvie.
• Students: Arnaud, Eugene, Fabio, Juliette, Leila, Pierre, Romain, Sean and Terry.

Photo of the Day

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