Functions of PARylation in DNA Damage Repair Pathways

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• 作者：Huiting Wei¹ ; ^a ; Xiaochun Yu² ; ^b ; ^{xyu@coh.org" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Poly ADP-ribosylation ; PARPs ; DNA damage response ; PAR-binding modules ; Ubiquitination
• 刊名：Genomics, Proteomics Bioinformatics
• 出版年：2016
• 出版时间：June 2016
• 年：2016
• 卷：14
• 期：3
• 页码：131-139
• 全文大小：681 K

文摘

Protein poly ADP-ribosylation (PARylation) is a widespread post-translational modification at DNA lesions, which is catalyzed by poly(ADP-ribose) polymerases (PARPs). This modification regulates a number of biological processes including chromatin reorganization, DNA damage response (DDR), transcriptional regulation, apoptosis, and mitosis. PARP1, functioning as a DNA damage sensor, can be activated by DNA lesions, forming PAR chains that serve as a docking platform for DNA repair factors with high biochemical complexity. Here, we highlight molecular insights into PARylation recognition, the expanding role of PARylation in DDR pathways, and the functional interaction between PARylation and ubiquitination, which will offer us a better understanding of the biological roles of this unique post-translational modification.