Novel PCR-mediated mutagenesis employing DNA containing a natural abasic site as a template and translesional Taq DNA polymerase.

Abstract:

We describe a novel method of PCR-mediated mutagenesis employing DNA containing a natural abasic site and translesional Taq DNA polymerase. This method incorporated an adenine (80.8%) or guanine (7.7%) residue or led to a base deletion mutation (11.2%) opposite the abasic site. We conclude that the combination of DNA containing an abasic site and translesional Taq DNA polymerase is an easy and useful technique for PCR-mediated mutagenesis, having advantages different from those of conventional error-prone PCR.

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