Gamma-ray induction of deoxyribonucleic acid synthesis in temperature-sensitive DNA initiation mutants of Escherichia coli.
DNA synthesis was followed after gamma-ray irradiation of several different temperature-sensitive mutants with defects in the initiation process. The results indicate that only dnaA and dnaI mutants show induction of supplementary DNA synthesis after gamma-ray irradiation. The induction of DNA synthesis by gamma-ray irradiation was also shown to be recA+ dependent in the dna5 mutant.
D004269:DNA, Bacterial / Q000096:biosynthesis* / Q000528:radiation effects; D004926:Escherichia coli / Q000235:genetics / Q000528:radiation effects*; D005720:Gamma Rays; D009154:Mutation; D010641:Phenotype; D013696:Temperature
D004269:DNA, Bacterial