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CRL4Cdt2: master coordinator of cell cycle progression and genome stability.

机译:CRL4Cdt2:细胞周期进程和基因组稳定性的主要协调员。

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摘要

Polyubiquitin-mediated degradation of proteins plays an essential role in various physiological processes including cell cycle progression, transcription and DNA replication and repair. Increasing evidence supports a vital role for the E3 ubiquitin ligase cullin-4, in conjunction with the substrate recognition factor Cdt2 (CRL4Cdt2), for the degradation of multiple cell cycle-regulated proteins to prevent genomic instability. In addition, it is critical for normal cell cycle progression by ensuring the timely destruction of various cell cycle proteins whose deregulated expression impairs cell cycle progression. Here, we summarize our current knowledge about the various roles of the CRL4Cdt2 E3 ubiquitin ligase, and how its activity contributes both to the preservation of genome integrity and to normal cell cycle progression, and how its deregulation may contribute to human cancer.
机译:聚泛素介导的蛋白质降解在各种生理过程中起着至关重要的作用,包括细胞周期进程,转录以及DNA复制和修复。越来越多的证据支持E3泛素连接酶cullin-4与底物识别因子Cdt2(CRL4Cdt2)结合,对多种细胞周期调控蛋白的降解以防止基因组不稳定性起着至关重要的作用。另外,通过确保及时破坏表达失调损害细胞周期进程的各种细胞周期蛋白,对于正常的细胞周期进程至关重要。在这里,我们总结了有关CRL4Cdt2 E3泛素连接酶的各种作用的当前知识,以及其活性如何对基因组完整性的保存和正常的细胞周期进程作出贡献,以及其失调对人类癌症的贡献。

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