Team:UCLA/Notebook/Honeybee Silk/27 July 2015
Starting Honeybee Protein Expression
- Following a similar protocol to the one performed on 5/18.
- Growing up cells in 100ml of LB.
- We are doing a smaller volume because we are running low on bugbuster lysis reagents, and we want to be able to do at least one more reaction after this one.
- Instead of making a starter culture, we are simply inoculating a colony into a 2L beveled culture flask.
- I would have used a 1L one, but there were none available.
- I started incubating the culture at 12:35 pm 7/27, but I forgot to add the Kanamycin antibiotic until 1 pm. (100 ul of 1000x).
- Here are the steps for today's growth protocol.
- Inoculate one colony in 100 ml of LB in an autoclaved beveled flask.
- Add appropriate antibiotics.
- Grow and shake at 37 until OD reaches between 0.4 and 0.6.
- At that point, add IPTG to final concentration of 0.5 mM
- Continue to incubate at 37 C and shake overnight.
- In the morning, spin down the cells, decant the supernatant, and freeze the pellet at -80 for storage.
- THE LB WE USED TO GROW OUR CELLS WAS CONTAMINATED! :( WILL REPEAT TOMORROW