Mutagenesis by alkylating agents: coding properties for DNA polymerase of poly (dC) template containing 3-methylcytosine.

Abstract excerpt

After treatment of poly(dC) by the simple alkylating agent (3H)dimethylsulfate, 90 per cent of the radioactivity cochromatographied with 3-methylcytosine and 10 per cent with 5-methylcytosine which is the normally occurring methylated base. In order to study the influence of 3-methylcytosine on DNA replication, untreated and DMS-treated poly(dC) were used as templates for E. coli DNA polymerase I. The alkylation...

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