| Literature DB >> 8078471 |
Abstract
Repair of heteroduplex DNA containing an A/G mismatch in a mutL background requires the Escherichia coli mutY gene function. The mutY-dependent in vitro repair of A/G mismatches is accompanied by repair DNA synthesis on the DNA strand bearing mispaired adenines. The size of the mutY-dependent repair tract was measured by the specific incorporation of alpha-[32P]dCTP into different restriction fragments of the repaired DNA. The repair tract is shorter than 12 nucleotides and longer than 5 nucleotides and is localized to the 3' side of the mismatched adenine. This repair synthesis is carried out by DNA polymerase I.Entities:
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Year: 1994 PMID: 8078471 DOI: 10.1007/bf00286698
Source DB: PubMed Journal: Mol Gen Genet ISSN: 0026-8925