Q5 PCR NEB
From GcatWiki
Reaction Setup
| REAGENT | VOLUME (µL) | FINAL CONC. |
|---|---|---|
| 10 µM Forward Primer | 2.5 µL | 0.5 µM |
| 10 µM Reverse Primer | 2.5 µL | 0.5 µM |
| Template DNA | Y (1ng) | 1 ng |
| Q5 High-Fidelity 2X Master Mix | 25 µL | 1X |
| Nuclease-free Water | 20- Y |
Final Volume = 50µL
Notes:
• Q5 High-Fidelity 2X Master Mix has an error rate > 100-fold lower than that of Taq DNA Polymerase
• Q5 High-Fidelity 2X Master Mix can be stored at -20°C. If precipitate forms after thawing, resuspend before use
• Remember to first dilute primers in nuclease-free water if starting with a higher concentration
• Do not exceed 50 µL final volume
Thermocycling Conditions
| STEP | TEMPERATURE (°C) | TIME | |
|---|---|---|---|
| <6kb | ≥6kb | ||
| Initial Denaturation | 98 | 30 sec | 1-3 min |
| 30 Cycles denature
anneal extend |
98
50-71 72 |
10 sec
20 sec 10 sec per kb |
10 sec
50 sec 1 min per kb |
| Final Extension | 72 | 2 min | 2 min |
| Hold | 4-22 | ||
To find annealing temperature, follow steps on the NEB Tm Calculator, [1] which should yield a temperature 3°C above the Tm of the lower primer
Modifications
If annealing temperature is above 72°C, use two-step PCR protocol below
| STEP | TEMPERATURE (°C) | TIME | |
|---|---|---|---|
| <6kb | ≥6kb | ||
| Initial Denaturation | 98 | 30 sec | 1-3 min |
| 30 Cycles denature
anneal & extend |
98
≥72 |
10 sec
10 sec per kb |
10 sec
1 min per kb |
| Final Extension | 72 | 2 min | 2 min |
| Hold | 4-22 | ||