Catalysis of the microtubule on-rate is the major parameter regulating the depolymerase activity of MCAK.
Catalysis of the microtubule on-rate is the major parameter regulating the depolymerase activity of MCAK.
复制标题
DOI:
10.1038/nsmb.1728
复制
发表时间:
2010-01
影响因子:
16.8
通讯作者:
中科院分区:
文献类型:
--
作者:
The kinesin-13, MCAK, is a critical regulator of microtubule dynamics in eukaryotic cells. We have functionally dissected the structural features responsible for MCAK’s potent microtubule depolymerization activity. MCAK’s positively charged neck enhances its delivery to microtubule ends, not by tethering the molecule to microtubules during diffusion, as commonly thought, but by catalyzing the association of MCAK to microtubules. On the other hand, this same positively charged neck slightly diminishes MCAK’s ability to remove tubulin subunits once at the microtubule end. Conversely, dimerization reduces MCAK delivery but improves MCAK’s ability to remove tubulin subunits. The reported kinetics for these events predict a non-specific binding mechanism that may represent a paradigm for the diffusive interaction of many microtubule binding proteins.
登录
查看更多内容
影响因子:
7.8
作者:
Wordeman, Linda;Wagenbach, Michael;von Dassow, George
通讯作者:
von Dassow, George
DOI:
10.1073/pnas.89.8.3338
发表时间:
1992-04-15
影响因子:
11.1
作者:
NORTHRUP, SH;ERICKSON, HP
通讯作者:
ERICKSON, HP
影响因子:
16
作者:
Hunter, AW;Caplow, M;Howard, J
通讯作者:
Howard, J
DOI:
10.1083/jcb.200802189
发表时间:
2008-05-05
期刊:
The Journal of cell biology
影响因子:
--
作者:
Kim Y;Heuser JE;Waterman CM;Cleveland DW
通讯作者:
Cleveland DW
影响因子:
4.3
作者:
Moores, Carolyn A.;Cooper, Jeremy;Milligan, Ronald A.
通讯作者:
Milligan, Ronald A.