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. 1982 Feb 25;10(4):1203-13.
doi: 10.1093/nar/10.4.1203.

Inhibitors of repair DNA synthesis

A R Collins, S Squires, R T Johnson

Inhibitors of repair DNA synthesis

A R Collins et al. Nucleic Acids Res. .

Abstract

We have measured repair DNA synthesis in UV-irradiated normal human fibroblasts, grown to a defined state of quiescence in order to avoid the problem of discriminating repair from replicative DNA synthesis. We have assessed the effects of various DNA synthesis inhibitors on repair. Inhibition of repair synthesis by hydroxyurea, 1-beta-D-arabinofuranosylcytosine and aphidicolin is associated with the ability to accumulate DNA breaks due to enzymic incision at DNA damage sites; the inhibition by novobiocin is in accord with its known ability to block incision.

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