Mutual regulation between the spindle checkpoint and APC/C.

Mutual regulation between the spindle checkpoint and APC/C.
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主轴检查点和APC/C之间的相互调节。

DOI:
10.1016/j.semcdb.2011.03.008
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发表时间:
2011-08
影响因子:
7.3
通讯作者:
Yu, Hongtao
Yu, Hongtao
中科院分区:
生物学2区
文献类型:
--
作者:
Kim, Soonjoung;Yu, Hongtao

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Accurate chromosome segregation during mitosis is critical for maintaining genomic stability. The spindle checkpoint is a cellular surveillance system that ensures the fidelity of chromosome segregation. In response to sister chromatids not properly captured by spindle microtubules, the spindle checkpoint interferes with the functions of Cdc20, the mitotic activator of the anaphase-promoting complex or cyclosome (APC/C), thereby blocking APC/C-mediated degradation of securin and cyclin B to delay anaphase onset. This review summarizes the recent progress in the mechanisms by which checkpoint proteins inhibit APC/C, the conformational and enzymatic activation of checkpoint proteins, and the emerging roles of APC/C-dependent ubiquitination in checkpoint inactivation.
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