SCF ubiquitin ligases in the maintenance of genome stability.

SCF ubiquitin ligases in the maintenance of genome stability.
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DOI:
10.1016/j.tibs.2011.10.004
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发表时间:
2012-02
影响因子:
13.8
通讯作者:
Pagano, Michele
Pagano, Michele
中科院分区:
生物学1区
文献类型:
--
作者:
Silverman, Joshua S.;Skaar, Jeffrey R.;Pagano, Michele

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为了应对遗传毒性应激,真核细胞激活DNA损伤反应(DDR),这是一系列协调细胞周期停滞和DNA修复以防止有害突变的途径。此外,细胞具有检查点机制,通过调节中心体的数量和纺锤体组装来防止非整倍性。在这些机制中,泛素介导的关键蛋白降解在DDR、中心体复制和染色体分离的调节中具有重要作用。本文综述了一组泛素连接酶SCF(SKP 1-CUL 1-F-box蛋白)家族在维持基因组稳定性中的功能。鉴于一般蛋白酶体抑制剂目前被用作抗癌剂,更好地理解特定靶点通过特定泛素连接酶的泛素化可能会改善癌症治疗。
In response to genotoxic stress, eukaryotic cells activate the DNA damage response (DDR), a series of pathways that coordinate cell cycle arrest and DNA repair to prevent deleterious mutations. In addition, cells possess checkpoint mechanisms that prevent aneuploidy by regulating the number of centrosomes and the spindle assembly. Among these mechanisms, ubiquitin-mediated degradation of key proteins has an important role in the regulation of the DDR, centrosome duplication and chromosome segregation. This review discusses the functions of a group of ubiquitin ligases, the SCF (SKP1-CUL1-F-box protein) family, in the maintenance of genome stability. Given that general proteasome inhibitors are currently used as anticancer agents, a better understanding of the ubiquitylation of specific targets by specific ubiquitin ligases may result in improved cancer therapeutics.
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