A cyclin without cyclin-dependent kinases: cyclin F controls genome stability through ubiquitin-mediated proteolysis.

A cyclin without cyclin-dependent kinases: cyclin F controls genome stability through ubiquitin-mediated proteolysis.
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DOI:
10.1016/j.tcb.2012.10.011
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发表时间:
2013-03
影响因子:
19
通讯作者:
Pagano M
Pagano M
中科院分区:
生物学1区
文献类型:
--
作者:
D'Angiolella V;Esencay M;Pagano M

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细胞周期转换是由细胞周期蛋白的周期性振荡驱动的,细胞周期蛋白结合并激活细胞周期蛋白依赖性蛋白激酶(CDK)来磷酸化靶底物。细胞周期蛋白F使用与其他细胞周期蛋白相似的底物募集策略,但其相关的催化活性有很大不同。事实上,细胞周期蛋白F是F-box家族的创始成员,该家族是SCF(Skp1-Cul1-F-box蛋白)泛素连接酶复合体的底物识别亚单位。在这里,我们讨论了细胞周期蛋白F的功能和最近发现的参与dNTP产生、中心体复制和纺锤体形成的SCF底物。我们强调了细胞周期蛋白F通过泛素介导的蛋白分解控制基因组稳定性的相关性,以及对癌症发展的影响。
Cell cycle transitions are driven by the periodic oscillations of cyclins, which bind and activate CDKs (cyclin-dependent kinases) to phosphorylate target substrates. Cyclin F uses a substrate recruitment strategy similar to that of the other cyclins, but its associated catalytic activity is substantially different. Indeed, cyclin F is the founding member of the F-box family of proteins, which are the substrate recognition subunits of SCF (Skp1-Cul1-F-box protein) ubiquitin ligase complexes. Here, we discuss cyclin F function and recently identified substrates of SCFcyclin F involved in dNTP production, centrosome duplication, and spindle formation. We highlight the relevance of cyclin F in controlling genome stability through ubiquitin-mediated proteolysis and the implications for cancer development.
从DNA中酶促去除核糖核苷酸对于哺乳动物的基因组完整性和发育至关重要。
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