Mechanisms underlying the dual-mode regulation of microtubule dynamics by Kip3/kinesin-8.
Mechanisms underlying the dual-mode regulation of microtubule dynamics by Kip3/kinesin-8.
复制标题
DOI:
10.1016/j.molcel.2011.06.027
复制
发表时间:
2011-09-02
期刊:
影响因子:
16
通讯作者:
Pellman D
中科院分区:
文献类型:
--
作者:
Su X;Qiu W;Gupta ML Jr;Pereira-Leal JB;Reck-Peterson SL;Pellman D
The kinesin-8 family of microtubule motors plays a critical role in microtubule length control in cells. These motors have complex effects on microtubule dynamics: they destabilize growing microtubules yet stabilize shrinking microtubules. The budding yeast kinesin-8, Kip3, accumulates on plus ends of growing but not shrinking microtubules. Here we identify an essential role of the tail domain of Kip3 in mediating both its destabilizing and stabilizing activities. The Kip3-tail promotes Kip’s accumulation at the plus ends and facilitates the destabilizing effect of Kip3. However, the Kip3-tail also inhibits microtubule shrinkage and is required for promoting microtubule rescue by Kip3. These effects of the tail domain are likely to be mediated by the tubulin- and microtubule-binding activities that we describe. We propose a concentration-dependent model for the coordination of the destabilizing and stabilizing activities of Kip3 and discuss its relevance to cellular microtubule organization.
登录
查看更多内容
影响因子:
64.5
作者:
Varga, Vladimir;Leduc, Cecile;Howard, Jonathon
通讯作者:
Howard, Jonathon
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:
3.5
作者:
HOVLAND, P;FLICK, J;SCLAFANI, RA
通讯作者:
SCLAFANI, RA
DOI:
10.1159/000092963
发表时间:
2006-01-01
期刊:
INFECTION AND INFLAMMATION : IMPACTS ON ONCOGENESIS
影响因子:
--
作者:
Duesberg, Peter;Li, Ruhong;Hehlmann, Ruediger
通讯作者:
Hehlmann, Ruediger
DOI:
10.1083/jcb.143.3.687
发表时间:
1998-11-02
期刊:
The Journal of cell biology
影响因子:
--
作者:
Straight AF;Sedat JW;Murray AW
通讯作者:
Murray AW