title: Role of the umuC gene in postreplication repair in UV-irradiated Escherichia coli K-12 uvrB.
abstract: The role of the umuC gene product in postreplication repair was studied in UV-irradiated Escherichia coli K-12 uvrB cells. A mutation at umuC increased the UV radiation sensitivities of uvrB, uvrB recF, uvrB recB, and uvrB recF recB cells; it also increased the deficiencies in the repair of DNA daughter-strand gaps in these strains, but it did not affect the repair of DNA double-strand breaks that arose from unrepaired DNA daughter-strand gaps. We suggest that the umuC gene product is involved in a minor system for the repair of DNA daughter-strand gaps, possibly the repair of overlapping DNA daughter-strand gaps.
authors.forename: T C
authors.initials: TC
authors.lastname: Wang
authors.forename: K C
authors.initials: KC
authors.lastname: Smith
mesh_terms: D001426:Bacterial Proteins / Q000235:genetics*; D004260:DNA Repair / Q000528:radiation effects; D004261:DNA Replication / Q000528:radiation effects; D004269:DNA, Bacterial / Q000096:biosynthesis / Q000528:radiation effects*; D004926:Escherichia coli / Q000235:genetics* / Q000528:radiation effects; D005798:Genes, Bacterial; D007700:Kinetics; D009154:Mutation; D014466:Ultraviolet Rays
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial