Jette Nicholas, Lees-Miller Susan P
Department of Biochemistry & Molecular Biology, Robson DNA Science Centre, Southern Alberta Cancer Research Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
Department of Biochemistry & Molecular Biology, Robson DNA Science Centre, Southern Alberta Cancer Research Institute, Cumming School of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB T2N 4N1, Canada.
Prog Biophys Mol Biol. 2015 Mar;117(2-3):194-205. doi: 10.1016/j.pbiomolbio.2014.12.003. Epub 2014 Dec 27.
The DNA-dependent protein kinase (DNA-PK) is a serine/threonine protein kinase composed of a large catalytic subunit (DNA-PKcs) and the Ku70/80 heterodimer. Over the past two decades, significant progress has been made in elucidating the role of DNA-PK in non-homologous end joining (NHEJ), the major pathway for repair of ionizing radiation-induced DNA double strand breaks in human cells and recently, additional roles for DNA-PK have been reported. In this review, we will describe the biochemistry, structure and function of DNA-PK, its roles in DNA double strand break repair and its newly described roles in mitosis and other cellular processes.
DNA依赖性蛋白激酶(DNA-PK)是一种丝氨酸/苏氨酸蛋白激酶,由一个大型催化亚基(DNA-PKcs)和Ku70/80异二聚体组成。在过去二十年中,在阐明DNA-PK在非同源末端连接(NHEJ)中的作用方面取得了重大进展,NHEJ是人类细胞中修复电离辐射诱导的DNA双链断裂的主要途径,最近,还报道了DNA-PK的其他作用。在这篇综述中,我们将描述DNA-PK的生物化学、结构和功能、其在DNA双链断裂修复中的作用以及最近描述的其在有丝分裂和其他细胞过程中的作用。