Degradation of Escherichia coli DNA synthesized after ultraviolet irradiation in the absence of repair.
DNA degradation in Escherichia coli uvrA recA bacteria exposed to a low dose (0.07 J/m2) of ultraviolet radiation was studied. A considerable amount of the newly-synthesized DNA, which contains gaps opposite pyrimidine dimers, is broken down. In contrast, parental, dimer-containing DNA is resistant to radiation-induced degradation.
D004260:DNA Repair; D004261:DNA Replication; D004269:DNA, Bacterial / Q000378:metabolism / Q000528:radiation effects*; D004926:Escherichia coli / Q000528:radiation effects*; D011829:Radiation Dosage; D014466:Ultraviolet Rays
D004269:DNA, Bacterial