DNA-PK: a dynamic enzyme in a versatile DSB repair pathway.

DNA-PK: a dynamic enzyme in a versatile DSB repair pathway.
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DOI:
10.1016/j.dnarep.2014.02.020
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发表时间:
2014-05
期刊:
影响因子:
3.8
通讯作者:
Chen, David J.
Chen, David J.
中科院分区:
医学3区
文献类型:
--
作者:
Davis, Anthony J.;Chen, Benjamin P. C.;Chen, David J.

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DNA双链断裂(DSB)是最具细胞毒性的DNA损伤,因为无法正确修复它们可导致基因组不稳定和肿瘤发生。人类中主要的DSB修复途径是非同源末端连接(NHEJ)。在最简单的意义上,NHEJ介导断裂的DNA分子的直接重新连接。然而,NHEJ是一个复杂而通用的过程,可以通过利用大量的蛋白质来修复具有各种损伤和末端的DSB。在这篇综述中,我们将描述重要的因素和机制,调节NHEJ,重点是这种修复过程和DNA-PK复合物的多功能性。
DNA double stranded breaks (DSBs) are the most cytoxic DNA lesion as the inability to properly repair them can lead to genomic instability and tumorigenesis. The prominent DSB repair pathway in humans is non-homologous end-joining (NHEJ). In the simplest sense, NHEJ mediates the direct re-ligation of the broken DNA molecule. However, NHEJ is a complex and versatile process that can repair DSBs with a variety of damages and ends via the utilization of a significant number of proteins. In this review we will describe the important factors and mechanisms modulating NHEJ with emphasis given to the versatility of this repair process and the DNA-PK complex.
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