Article
DNA-protein crosslinks processed by nucleotide excision repair and homologous recombination with base and strand preference in E. coli model system.
Mutation research - 1 Jan 2000
Fang Qingming
Abstract excerpt
Bis-electrophiles including dibromoethane and epibromohydrin can react with O(6)-alkylguanine-DNA alkyltransferase (AGT) and form AGT-DNA crosslinks in vitro and in vivo. The presence of human AGT (hAGT) paradoxically increases the mutagenicity and cytotoxicity of bis-electrophiles in cells. Here we establish a bacterial system to study the repair mechanism and cellular responses to DNA-protein crosslinks (DPCs)...
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