Effects of ATP and other nucleotides on DNA repair synthesis in bleomycin-pretreated permeable mouse sarcoma cells
- 1 October 1987
- journal article
- research article
- Published by Oxford University Press (OUP) in Carcinogenesis: Integrative Cancer Research
- Vol. 8 (10) , 1391-1394
- https://doi.org/10.1093/carcin/8.10.1391
Abstract
Effects of ATP and some other nucleotides (AMP, ADP, CTP, GTP, UTP and dATP) on reparative DNA synthesis and repair patch ligation in bleomycin-pretreated permeable mouse sarcoma cells were studied. Reparative DNA synthesis was significantly stimulated by 2.5 mM ATP, ADP or dATP. The stimulation was observed on both DNA polymerase α- and β-dependent reparative DNA synthesis. ATP concentration required for repair patch ligation was much lower than that required for the stimulation of reparative DNA synthesis. An apparent K m value for ATP of the repair patch ligation was about 40 μM. ADP supported repair patch ligation after being converted into ATP by adenylate kinase in permeable cells.Keywords
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