Annealing Time and Temperature
Recommended reading: Climate Change and Microbial Ecology | Polymerase Chain Reaction | SUMOylation and Ubiquitination
Annealing TimeAn annealing time of 30-45 seconds is commonly used in PCR reactions. Increase in annealing time up o 2-3 minutes did not appreciably influence the outcome of the PCR reactions. However, as the polymerase has some reduced activity between 45 and 65o C (interval in which most annealing temperature are chosen), longer annealing times may increase the likelihood of unspecific amplification products.
Annealing TemperatureAnnealing temperature is one of the most important parameters that need adjustment in the PCR reaction. Moreover, the flexibility of this parameter allows optimization of the reaction in the presence of variable amounts of other ingredients (especially template DNA).
- Real-Time PCR: Advanced Technologies and Applications
- Real-Time PCR in Food Science: Current Technology and Applications
- Quantitative Real-time PCR in Applied Microbiology
See also: Current PCR books