Spindle assembly checkpoint activation and silencing at kinetochores.
Spindle assembly checkpoint activation and silencing at kinetochores.
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DOI:
10.1016/j.semcdb.2021.06.009
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发表时间:
2021-09
影响因子:
7.3
通讯作者:
Desai A
中科院分区:
文献类型:
--
作者:
Lara-Gonzalez P;Pines J;Desai A
The spindle assembly checkpoint (SAC) is a surveillance mechanism that promotes accurate chromosome segregation in mitosis. The checkpoint senses the attachment state of kinetochores, the proteinaceous structures that assemble onto chromosomes in mitosis in order to mediate their interaction with spindle microtubules. When unattached, kinetochores generate a diffusible inhibitor that blocks the activity of the anaphase-promoting complex/cyclosome (APC/C), an E3 ubiquitin ligase required for sister chromatid separation and exit from mitosis. Work from the past decade has greatly illuminated our understanding of the mechanisms by which the diffusible inhibitor is assembled and how it inhibits the APC/C. However, less is understood about how SAC proteins are recruited to kinetochores in the absence of microtubule attachment, how the kinetochore catalyzes formation of the diffusible inhibitor, and how attachments silence the SAC at the kinetochore. Here, we summarize current understanding of the mechanisms that activate and silence the SAC at kinetochores and highlight open questions for future investigation.
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影响因子:
21.3
作者:
Aravamudhan P;Goldfarb AA;Joglekar AP
通讯作者:
Joglekar AP
影响因子:
64.8
作者:
Alfieri, Claudio;Chang, Leifu;Zhang, Ziguo;Yang, Jing;Maslen, Sarah;Skehel, Mark;Barford, David
通讯作者:
Barford, David
影响因子:
16.6
作者:
Asghar A;Lajeunesse A;Dulla K;Combes G;Thebault P;Nigg EA;Elowe S
通讯作者:
Elowe S
影响因子:
11.4
作者:
Burton, Janet L.;Xiong, Yong;Solomon, Mark J.
通讯作者:
Solomon, Mark J.
DOI:
10.1083/jcb.200204048
发表时间:
2002-08-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Chen RH
通讯作者:
Chen RH