Regulation of microtubule dynamics by TOG-domain proteins XMAP215/Dis1 and CLASP.
Regulation of microtubule dynamics by TOG-domain proteins XMAP215/Dis1 and CLASP.
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DOI:
10.1016/j.tcb.2011.06.007
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发表时间:
2011-10
影响因子:
19
通讯作者:
Chang F
中科院分区:
文献类型:
--
作者:
Al-Bassam J;Chang F
The molecular mechanisms by which microtubule-associated proteins (MAPs) regulate the dynamic properties of microtubules (MTs) are still poorly understood. Here, we review recent advances in our understanding of two conserved families of MAPs, the XMAP215/Dis1 and CLASP family of proteins. In vivo and in vitro studies show that XMAP215 proteins act as microtubule polymerases at MT plus ends to accelerate MT assembly, while CLASP proteins promote MT rescue and suppress MT catastrophe events. These are structurally related proteins that use conserved TOG domains to recruit tubulin dimers to MTs. We discuss models for how these proteins might use these individual tubulin dimers to regulate dynamic behaviors of MT plus ends.
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