USTC/Notebook/PCR&Colony PCR
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1. set up pre-labeled reaction tubes on ice | 1. set up pre-labeled reaction tubes on ice | ||
- | |||
2. add the following components: | 2. add the following components: | ||
- | - | + | - 2µL PCR buffer (rock gently after thawing, quick spin before use) |
- | - 200nM final concentration of each primer | + | - 1.2uL Mgcl2 |
+ | - 0.4uL dNTPs | ||
+ | - 200nM final concentration of each primer | ||
+ | - 0.2uL Taq enzyme | ||
- template DNA | - template DNA | ||
- | (note: the total volume of | + | (note: the total volume of PCR is 20µL) |
Line 21: | Line 23: | ||
- | 4. perform PCR with an initial heating step at 94C for | + | 4. perform PCR with an initial heating step at 94C for 5 minutes followed by 25-35 cycles of 30sec at 94C, 30sec at 55C and 1Kb/min at 72C |
== colony PCR == | == colony PCR == | ||
- | 2 uL primer #1 (to | + | 0.2 uL primer #1 (to 25uM) |
+ | 0.2 uL primer #2 | ||
+ | 0.4 uL dNTPs | ||
+ | 2 uL Buffer | ||
+ | 5 uL colony culture | ||
+ | 0.2 uL Taq | ||
+ | 10.4 uL H20 | ||
- | + | perform PCR with an initial heating step at 94C for 5 minutes followed by 25-35 cycles of 30sec at 94C, 30sec at 55C and 1Kb/min at 72C,and 72C for 10min |
Revision as of 13:43, 27 October 2008
PCR
Briefly, a typical reaction is set up as follows:
1. set up pre-labeled reaction tubes on ice
2. add the following components: - 2µL PCR buffer (rock gently after thawing, quick spin before use) - 1.2uL Mgcl2 - 0.4uL dNTPs - 200nM final concentration of each primer - 0.2uL Taq enzyme - template DNA (note: the total volume of PCR is 20µL)
3. make sure reaction tubes are properly capped before placing in thermocycler
4. perform PCR with an initial heating step at 94C for 5 minutes followed by 25-35 cycles of 30sec at 94C, 30sec at 55C and 1Kb/min at 72C
colony PCR
0.2 uL primer #1 (to 25uM) 0.2 uL primer #2
0.4 uL dNTPs
2 uL Buffer 5 uL colony culture 0.2 uL Taq 10.4 uL H20
perform PCR with an initial heating step at 94C for 5 minutes followed by 25-35 cycles of 30sec at 94C, 30sec at 55C and 1Kb/min at 72C,and 72C for 10min