[Genetic control of the processes of postradiation repair of a compact chromosome in Micrococcus radiodurans cells].
X-irradiation of Micrococcus radiodurans cells with sublethal doses caused disturbances in the structure of a membrane-bound compact chromosome. Recovery of the compact chromosome occurred during the postirradiation incubation of the wild type cells and cells of the UVS-17 mutant deficient in DNA-polymerase. This process was blocked in cells of rec-30 mutant with the impaired system of genetic recombination: this is indicative of an important role played by rec-30 gene product in the postirradiation recovery of the compact chromosome in M. radiodurans cells.
D002876:Chromosomes, Bacterial / Q000528:radiation effects / Q000648:ultrastructure*; D004260:DNA Repair / Q000528:radiation effects*; D004269:DNA, Bacterial / Q000096:biosynthesis / Q000528:radiation effects*; D004278:DNA, Superhelical / Q000528:radiation effects; D004259:DNA-Directed DNA Polymerase / Q000172:deficiency; D004307:Dose-Response Relationship, Radiation; D008837:Micrococcus / Q000201:enzymology / Q000235:genetics / Q000528:radiation effects*; D009154:Mutation
D004269:DNA, Bacterial; D004278:DNA, Superhelical; D004259:DNA-Directed DNA Polymerase
Geneticheskiĭ kontrol' protsessov postradiatsionnogo vosstanovleniia kompaktnoĭ khromosomy v kletkakh Micrococcus radiodurans.