title: Conditional lethality of deletions which include uvrB in strains of Escherichia coli lacking deoxyribonucleic acid polymerase I.
abstract: Deletions of the uvrB gene were not obtained in polA1 strains of Escherichia coli either by selecting for spontaneous deletions or by transduction from strains carrying such deletions. A strain forming a temperature-sensitive deoxyribonucleic acid polymerase I and carrying a deletion of the uvrB gene is inviable at the nonpermissive temperature.
mesh_terms: D002470:Cell Survival; D002874:Chromosome Mapping; D004254:DNA Nucleotidyltransferases / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology / Q000302:isolation & purification / Q000378:metabolism / Q000528:radiation effects; D005690:Galactose / Q000378:metabolism; D005804:Genes, Lethal; D008242:Lysogeny; D009154:Mutation; D011830:Radiation Effects; D013696:Temperature; D014161:Transduction, Genetic; D014466:Ultraviolet Rays
chemical_list: D004254:DNA Nucleotidyltransferases; D005690:Galactose