Kif18A and chromokinesins confine centromere movements via microtubule growth suppression and spatial control of kinetochore tension.
Kif18A and chromokinesins confine centromere movements via microtubule growth suppression and spatial control of kinetochore tension.
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KIF18A和染色体通过微管生长抑制和动力学张力的空间控制来限制着丝粒运动。
DOI:
10.1016/j.devcel.2012.02.013
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发表时间:
2012-05-15
影响因子:
11.8
通讯作者:
Wordeman, Linda
中科院分区:
文献类型:
--
作者:
Stumpff, Jason;Wagenbach, Michael;Franck, Andrew;Asbury, Charles L.;Wordeman, Linda
Alignment of chromosomes at the metaphase plate is a signature of cell division in metazoan cells, yet the mechanisms controlling this process remain ambiguous. Here we use a combination of quantitative live cell imaging and reconstituted dynamic microtubule assays to investigate the molecular control of mitotic centromere movements. We establish that Kif18A (kinesin-8) attenuates centromere movement by directly promoting microtubule pausing in a concentration-dependent manner. This activity provides the dominant mechanism for restricting centromere movement to the spindle midzone. Furthermore, polar ejection forces spatially confine chromosomes via position-dependent regulation of kinetochore tension and centromere switch rates. We demonstrate that polar ejection forces are antagonistically modulated by chromokinesins. These pushing forces depend on Kid (kinesin-10) activity and are antagonized by Kif4A (kinesin-4), which functions to directly suppress microtubule growth. These data support a model in which Kif18A and polar ejection forces synergistically promote centromere alignment via spatial control of kinetochore-microtubule dynamics.
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DOI:
10.1016/j.cub.2009.04.036
发表时间:
2009-05-26
期刊:
Current biology : CB
影响因子:
--
作者:
Ke K;Cheng J;Hunt AJ
通讯作者:
Hunt AJ
影响因子:
21.3
作者:
Gupta, Mohan L., Jr.;Carvalho, Pedro;Pellman, David
通讯作者:
Pellman, David
影响因子:
9.2
作者:
Bieling, Peter;Kronja, Iva;Surrey, Thomas
通讯作者:
Surrey, Thomas
影响因子:
7.8
作者:
Khodjakov, A;Rieder, CL
通讯作者:
Rieder, CL
DOI:
10.1083/jcb.200909005
发表时间:
2010-03-08
期刊:
The Journal of cell biology
影响因子:
--
作者:
Jaqaman K;King EM;Amaro AC;Winter JR;Dorn JF;Elliott HL;McHedlishvili N;McClelland SE;Porter IM;Posch M;Toso A;Danuser G;McAinsh AD;Meraldi P;Swedlow JR
通讯作者:
Swedlow JR