Does AmpliTaq® Gold DNA Polymerase contain exonuclease (proofreading) activity?

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Answer

No, AmpliTaq® Gold DNA polymerase does not contain proofreading activity, however fidelity in PCR amplifications utilizing this enzyme may be improved. High fidelity can be achieved by: 1. Decreasing the final concentration of each nucleotide to 40-50 uM. 2. Using the lowest MgCl2 concentration possible. 3. Using less enzyme. 4. Decreasing extension times. 5. Using the highest annealing temperature possible. 6. Using as few cycles as possible.

Answer Id: 1338

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