title: Damage to DNA induces expression of the ruv gene of Escherichia coli.
abstract: Regulation of the ruv gene of E. coli was studied using phage Mud (Ap lac) to obtain a fusion of the lac genes to the ruv promoter. Beta-galactosidase synthesis in the ruv-lac fusion strain was induced by mitomycin C and other agents that damage DNA. The induction of beta-galactosidase could be altered by mutations either in lexA or recA from which it is concluded that ruv is regulated by lexA repressor. A possible function of ruv in promoting cell recovery following damage to DNA is discussed.
mesh_terms: D001426:Bacterial Proteins / Q000502:physiology; D003090:Coliphages / Q000235:genetics; D004260:DNA Repair; D004269:DNA, Bacterial / Q000528:radiation effects; D004926:Escherichia coli / Q000235:genetics* / Q000528:radiation effects; D005786:Gene Expression Regulation; D005798:Genes, Bacterial; D011938:Rec A Recombinases; D011995:Recombination, Genetic; D012697:Serine Endopeptidases; D014466:Ultraviolet Rays; D000099160:LexA Repressor Protein
chemical_list: D001426:Bacterial Proteins; D004269:DNA, Bacterial; D011938:Rec A Recombinases; D012697:Serine Endopeptidases; D000099160:LexA Repressor Protein