[The repair of DNA single-stranded breaks and degradation under the action of novobiocin in gamma-irradiated HeLa cells].


A method of sedimentation in alkaline sucrose gradients was used to study repair of gamma-induced DNA single strand breaks (SSB) and DNA degradation in HeLa cells treated with novobiocin (Nb), an inhibitor of topoisomerase II. After irradiation in a dose of 150 Gr, Nb in a concentration of 1 mM does not affect the effectivity of SSB repair and DNA molecular… (More)


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