title: Repair deficiency in Escherichia coli UV-sensitive mutator strain uvr502.
mesh_terms: D002499:Centrifugation, Density Gradient; D004260:DNA Repair; D004269:DNA, Bacterial / Q000096:biosynthesis* / Q000528:radiation effects; D004926:Escherichia coli / Q000378:metabolism / Q000528:radiation effects*; D005827:Genetics, Microbial; D009154:Mutation; D011830:Radiation Effects; D014316:Tritium; D014466:Ultraviolet Rays
chemical_list: D004269:DNA, Bacterial; D014316:Tritium