Inputs and outputs of poly(ADP-ribosyl)ation: Relevance to oxidative stress.

Inputs and outputs of poly(ADP-ribosyl)ation: Relevance to oxidative stress.
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DOI:
10.1016/j.redox.2014.08.003
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发表时间:
2014
期刊:
影响因子:
11.4
通讯作者:
Virag, Laszlo
Virag, Laszlo
中科院分区:
生物学1区
文献类型:
--
作者:
Hegedus, Csaba;Virag, Laszlo

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氧化应激可引起DNA断裂,从而诱导DNA缺口传感器酶多聚(ADP-核糖)聚合酶-1(PARP-1)的激活,PARP-1是17个成员的PARP酶家族的一部分。PARP-1通过将NAD衍生的几个ADP-核糖单元连接到靶蛋白上来修饰靶蛋白,形成聚(ADP-核糖)(PAR)聚合物。PAR化控制着许多细胞过程,而强烈的PAR化也可能通过各种机制导致细胞死亡。本文综述了PARP-1的激活方式、抑制剂和调节剂,并对该酶调控的细胞功能进行了综述。
Oxidative stress can cause DNA breaks which induce activation of the DNA nick sensor enzyme poly(ADP-ribose) polymerase-1 (PARP-1), part of the 17 member PARP enzyme family. PARP-1 modifies target proteins by attaching to them several NAD-derived ADP-ribose units forming poly(ADP-ribose) (PAR) polymers. PARylation controls many cellular processes while intense PARylation may also lead to cell death by various mechanisms. Here we summarize the modes of activation, inhibitors and modulators of PARP-1 and review the cellular functions regulated by the enzyme.
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