Title : Overlapping roles for PARP1 and PARP2 in the recruitment of endogenous XRCC1 and PNKP into oxidized chromatin.

Pub. Date : 2017 Mar 17

PMID : 27965414






2 Functional Relationships(s)
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Protein Name
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1 Surprisingly, we show that either PARP1 or PARP2 are sufficient for near-normal XRCC1 recruitment at oxidative single-strand breaks (SSBs) as indicated by the requirement for loss of both proteins to greatly reduce or ablate XRCC1 chromatin binding following H2O2 treatment. Hydrogen Peroxide poly(ADP-ribose) polymerase 1 Homo sapiens
2 Notably, concentrations of PARP inhibitor >1000-fold higher than the IC50 were required to ablate both ADP-ribosylation and XRCC1 chromatin binding following H2O2 treatment. Hydrogen Peroxide poly(ADP-ribose) polymerase 1 Homo sapiens