Materials
- PCR SuperMix High Fidelity
- VF2 primer (
5'-TGCCACCTGACGTCTAAGAA-3'
) - VR primer (
5'-ATTACCGCCTTTGAGTGAGC-3'
) - Deionized, sterile H2O
- strip of PCR tubes
- 2-log DNA ladder
- 0.8% E-Gel® from Invitrogen Corporation in Carlsbad, CA
Equipment
- DNA Engine OPTICON\texttrademark from MJ Research, Inc. (now Bio-Rad Laboratories, Inc., Hercules, CA)
- E-Gel® PowerBase™ v.4 from Invitrogen Corporation in Carlsbad, CA
- Alpha Innotech FluoChemâ„¢ 880 gel imaging system
Procedure
PCR mix
- 9 μL PCR SuperMix High Fidelity
- 6.25 pmoles VF2 primer
- 6.25 pmoles VR primer
- 1 μL colony suspension
- dilute 1 colony in 100 μL water
PCR conditions
- 95°C for 15 minutes
- 94°C for 30 seconds
- 62°C for 30 seconds
- 68°C for 3.5 minutes
- Repeat 2-4 39 times.
- 68°C for 20 mins
- 4°C forever
Agarose gel electrophoresis
- Dilute the reactions four-fold with water.
- Perform an agarose gel electrophoresis of 20 μL of each diluted reaction using a 0.8% E-Gel®.
- Also electrophorese 1 μg of 2-log DNA ladder to verify the length of each PCR product.
- Image gel with 302 nm transilluminating ultraviolet light using an ethidium bromide camera filter and an exposure time of 614 milliseconds.