Article
Role of Postreplicative DNA Mismatch Repair in the Cytotoxic Action of Thioguanine
23 Aug 1996
Abstract excerpt
It is proposed here that the delayed cytotoxicity of thioguanine involves the postreplicative DNA mismatch repair system. After incorporation into DNA, the thioguanine is chemically methylated by S-adenosylmethionine to form S6-methylthioguanine. During DNA replication, the S6-methylthioguanine directs incorporation of either thymine or cytosine into the growing DNA strand, and the resultant...
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