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The Comings and Goings of PARP-1 in Response to DNA Damage

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Publisher Elsevier
Date 2018 Sep 5
PMID 30177435
Citations 163
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Abstract

Poly(ADP-ribose) polymerase (PARP) enzymes are broadly involved in the cellular response to DNA damage. PARP-1 is the chief human PARP enzyme involved in the DNA damage response, acting as a first responder that detects DNA strand breaks, and contributes to repair pathway choice and the efficiency of repair through modulation of chromatin structure and through interaction with and modification of a multitude of DNA repair factors. This perspective summarizes our knowledge of PARP-1 involvement in DNA repair pathways, and highlights recent structural and functional data regarding the activation of PARP-1 upon detecting DNA damage, and the release and trapping of PARP-1 at sites of DNA damage.

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