ATR: an essential regulator of genome integrity.

ATR: an essential regulator of genome integrity.
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DOI:
10.1038/nrm2450
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发表时间:
2008-08
期刊:
Nature reviews. Molecular cell biology
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基因组维持是细胞持续关注的问题,对DNA损伤的协调反应是维持细胞活力和预防疾病所必需的。ataxa -毛细血管扩张突变(ATM)和ATM和rad3相关(ATR)蛋白激酶通过信号传导控制细胞周期转变、DNA复制、DNA修复和凋亡,作为DNA损伤反应的主要调节因子。最近的研究为控制ATR激活的机制提供了新的见解,有助于解释ATR和ATM在dna损伤信号传导中的重叠但不冗余的活动,并阐明了ATR在维持基因组完整性方面的关键功能。
Genome maintenance is a constant concern for cells, and a coordinated response to DNA damage is required to maintain cellular viability and prevent disease. The ataxia-telangiectasia mutated (ATM) and ATM and RAD3-related (ATR) protein kinases act as master regulators of the DNA-damage response by signalling to control cell-cycle transitions, DNA replication, DNA repair and apoptosis. Recent studies have provided new insights into the mechanisms that control ATR activation, have helped to explain the overlapping but non-redundant activities of ATR and ATM in DNA-damage signalling, and have clarified the crucial functions of ATR in maintaining genome integrity.
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