Team:Alberta NINT/Protocols
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Lab Protocols
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Overnights
Inoculating LB culture tubes:
Add 5ul Amp50 or Amp100 to 200ml LB broth in tube. Using sterile inoculating loop, touch an isolated colony. Swirl loop through LB + amp broth. Incubate overnight at 37 C.
Minipreps QIAprep Spin Miniprep Protocol
Isolating DNA from LB culture tubes:
Add 2X 750ul broth from overnights into a 1.5ml tube. Centrifuge for 1 min to pellet and aspirate liquid. Add 250ul Buffer P1 and resuspend pelleted cells. Add 250ul Buffer P2 and invert tube 4-6 times. Add 350ul Buffer N3 and invert tube immediately 4-6 times. Centrifuge for 10 min. Apply supernatant to QIAprep spin column. Centrifuge for 1 min and discard flow through. Add 500ul Buffer PB, centrifuge for 1 min and discard flow through (only if high nuclease activity). Add 750ul Buffer PE, centrifuge for 1 min and discard flow through. Centrifuge for an additional 1 min. Place spin column in a clean 1.5ml tube. Add 50ul Buffer EB, let stand for 1 min and centrifuge for 1 min.