Tex14, a Plk1-regulated protein, is required for kinetochore-microtubule attachment and regulation of the spindle assembly checkpoint.
Tex14, a Plk1-regulated protein, is required for kinetochore-microtubule attachment and regulation of the spindle assembly checkpoint.
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DOI:
10.1016/j.molcel.2012.01.013
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发表时间:
2012-03-09
期刊:
影响因子:
16
通讯作者:
Couch FJ
中科院分区:
文献类型:
--
作者:
Mondal G;Ohashi A;Yang L;Rowley M;Couch FJ
Proper assembly of kinetochores (KTs) during mitosis is required for bipolar attachment of spindle microtubules (MTs) and the accumulation of spindle assembly checkpoint (SAC) components. Here we show that testis expressed protein 14 (Tex14), which has been implicated in midbody function, is recruited to KTs by Plk1 in a Cdk1-dependent manner during early mitosis. Exclusion of Tex14 from kinetochores results in an inability to efficiently localize outer KT components, impaired KT-MT attachment, chromosome congression defects and whole chromosome instability. In addition, we demonstrate that phosphorylation of Tex14 by Plk1 during metaphase promotes APCCdc20-mediated Tex14 degradation. Inhibition of this phosphorylation event causes retention of Tex14 at KTs and results in delayed metaphase to anaphase transition and chromosome segregation defects. Our findings identify Tex14 as an important mediator of KT structure and function and the fidelity of chromosome separation.
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影响因子:
7
作者:
Santamaria, Anna;Wang, Bin;Nigg, Erich A.
通讯作者:
Nigg, Erich A.
影响因子:
4.3
作者:
Huang, Haomin;Yen, Timothy J.
通讯作者:
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DOI:
10.1083/jcb.201001036
发表时间:
2010-07-12
期刊:
The Journal of cell biology
影响因子:
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作者:
Santaguida S;Tighe A;D'Alise AM;Taylor SS;Musacchio A
通讯作者:
Musacchio A
影响因子:
3.7
作者:
Przewloka, Marcin R.;Zhang, Wei;Costa, Patricia;Archambault, Vincent;D'Avino, Pier Paolo;Lilley, Kathryn S.;Laue, Ernest D.;McAinsh, Andrew D.;Glover, David M.
通讯作者:
Glover, David M.
影响因子:
9.2
作者:
DeLuca, JG;Howell, BJ;Salmon, ED
通讯作者:
Salmon, ED