Team:Northwestern/Protocols/Transform
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Restriction Digest
This protocol was taken and adapted from the yellow book. The yellow book took this protocol and adapted from GinkgoBioworks BioBrick Assembly Manual.
Prepare
- Turn on water bath to 42C
- Get Bucket of Ice
- Get DNA Plasmids
- Thaw the competent cells on ice
- Bring bucket of ice to the -80C for this part
- Put overnight tubes on ice (# overnight tubes = # transformations)
Preparing DNA plasmids
- From iGEM wells
- Add 10uL of Nuclease-free water into well
- Pipette up and down several times to mix
- Let sit for a few minutes
- From Amp Resistance stocks
- Aliquot 1uL of DNA from stock tube into a different microcentrifuge tube
- Put DNA stock tube back into freezer
- Add 99uL of sterile water into microcentrifuge tube (concentration 1:100)
- Aliquot 1uL of the new mix into a second microcentrifuge tube
- Add 9uL of sterile water into second microcentrifuge tube (concentration 1ng/ul)
Procedure
Overnight Tubes (start from here if using hydrated DNA or ligations)
- Take 25uL aliquots of cells into the overnight tubes on ice
- Add 1uL of DNA to each overnight tube on ice
- Inject the DNA into the solution at the bottom
- Leave tip in the overnight tube
- Let sit for 30 minutes on ice
- Heat Shock the Tubes in the Water Bath by placing the tubes in the water bath (42C) for exactly 40 seconds
- Place immediately back on ice for 2 minutes
- Add 200uL of SOB to each tube
- Place into shaker (200rpm @ 37C) for 1 hour.
Plating
- Spread cells onto plates
- Incubate overnight in the incubator (37C)