Dynamic autophosphorylation of mps1 kinase is required for faithful mitotic progression.
Dynamic autophosphorylation of mps1 kinase is required for faithful mitotic progression.
复制标题
mps1 激酶的动态自磷酸化是忠实有丝分裂进展所必需的。
DOI:
10.1371/journal.pone.0104723
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Dou Z
中科院分区:
文献类型:
--
作者:
Wang X;Yu H;Xu L;Zhu T;Zheng F;Fu C;Wang Z;Dou Z
The spindle assembly checkpoint (SAC) is a surveillance mechanism monitoring cell cycle progression, thus ensuring accurate chromosome segregation. The conserved mitotic kinase Mps1 is a key component of the SAC. The human Mps1 exhibits comprehensive phosphorylation during mitosis. However, the related biological relevance is largely unknown. Here, we demonstrate that 8 autophosphorylation sites within the N-terminus of Mps1, outside of the catalytic domain, are involved in regulating Mps1 kinetochore localization. The phospho-mimicking mutant of the 8 autophosphorylation sites impairs Mps1 localization to kinetochore and also affects the kinetochore recruitment of BubR1 and Mad2, two key SAC effectors, subsequently leading to chromosome segregation errors. Interestingly, the non-phosphorylatable mutant of the 8 autophosphorylation sites enhances Mps1 kinetochore localization and delays anaphase onset. We further show that the Mps1 phospho-mimicking and non-phosphorylatable mutants do not affect metaphase chromosome congression. Thus, our results highlight the importance of dynamic autophosphorylation of Mps1 in regulating accurate chromosome segregation and ensuring proper mitotic progression.
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DOI:
10.1038/nrm3494
发表时间:
2013-01
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
DOI:
10.1074/jbc.m111.307355
发表时间:
2012-02-17
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lee S;Thebault P;Freschi L;Beaufils S;Blundell TL;Landry CR;Bolanos-Garcia VM;Elowe S
通讯作者:
Elowe S
影响因子:
44.1
作者:
Dou, Z;Sawagechi, A;Yao, XB
通讯作者:
Yao, XB
影响因子:
4.8
作者:
Mattison, Christopher P.;Old, William M.;Winey, Mark
通讯作者:
Winey, Mark
DOI:
10.1083/jcb.201003038
发表时间:
2010-10-18
期刊:
The Journal of cell biology
影响因子:
--
作者:
Jelluma N;Dansen TB;Sliedrecht T;Kwiatkowski NP;Kops GJ
通讯作者:
Kops GJ