DNA polymerase delta is required for human mismatch repair in vitro.

Abstract

HeLa nuclear extract was resolved into a depleted fraction incapable of supporting mismatch repair in vitro, and repair activity was restored upon the addition of a purified fraction isolated from HeLa cells by in vitro complementation assay. The highly enriched complementing activity copurified with a DNA polymerase, and the most pure fraction contained… (More)

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