Sirtuins, metabolism, and DNA repair.

Sirtuins, metabolism, and DNA repair.
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DOI:
10.1016/j.gde.2014.05.005
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发表时间:
2014-06
影响因子:
4
通讯作者:
Mostoslavsky, Raul
Mostoslavsky, Raul
中科院分区:
生物学2区
文献类型:
--
作者:
Choi, Jee-Eun;Mostoslavsky, Raul

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细胞进化为主动协调营养可利用性与细胞活动,以维持代谢稳态。此外,修复DNA损伤的活性途径对于避免有害的基因组不稳定至关重要。近年来,越来越清楚的是,中间代谢物的可用性可能在DNA修复中发挥重要作用,这表明这两种看似遥远的细胞活动可能高度协调。sirtuin家族的蛋白质现在被描述为去乙酰化酶(它们也可以去除乙酰基以外的酰基),它似乎已经进化到控制代谢和DNA修复。在这篇综述中,我们讨论了为理解sirtuins在这两个生物过程中的作用以及协调它们的潜在串扰奠定基础的最新进展。
Cells evolve to actively coordinate nutrient availability with cellular activity in order to maintain metabolic homeostasis. In addition, active pathways to repair DNA damage are crucial to avoid deleterious genomic instability. In recent years, it has become increasingly clear that availability of intermediate metabolites may play an important role in DNA repair, suggesting that these two seemingly distant cellular activities may be highly coordinated. The sirtuin family of proteins now described as deacylases (they can also remove acyl groups other than acetyl moieties), it appears to have evolved to control both metabolism and DNA repair. In this review, we discuss recent advances that lay the foundation to understanding the role of sirtuins in these two biological processes, and the potential crosstalk to coordinate them.
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