Team:Washington/Notebook/protein gel
From 2009.igem.org
Protein Gel
- Set up overnights of parts J36848-J36851
- Dilute 1μL overnight into 1mL broth
- Add 1 mM IPTG and let grow for four hours
- After cells have grown up to saturation, heat water to a boil
- Add 100μL of overnight to a 1.5mL tube
- Pellet by spinning at max speed for 30 secs in the microcentrifuge
- Discard supernatant
- Pull an aliquot of 5x sample loading buffer out of the freezer and thaw
- Add 20uL BME to aliquot
- Resuspend samples in 50uL sample loading buffer (pipette up/down)
- Boil samples for 10 minutes
- While boiling, prepare 500mL 1x SDS buffer:
- 50mL 10x buffer to 450mL water
- Take a gel out of the fridge and and put it in the gel box (keep the gel container for staining!!!)
- Pour the mixed buffer solution into the half of the gel box that the gel is in
- Remove the gel comb
- Fill the little container on the top of the gel until it's about 0.5 cm from the top with buffer
- Remove any bubbles in the wells
- Spin down samples for a few seconds
- Vortex samples
- Load 3uL into each well
- Load 10uL of ladder in appropriate wells
- Run at 180V until the dye is about to fall off the gel