Actin nucleation and elongation factors: mechanisms and interplay.
Actin nucleation and elongation factors: mechanisms and interplay.
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DOI:
10.1016/j.ceb.2008.12.001
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发表时间:
2009-02
影响因子:
7.5
通讯作者:
Goode BL
中科院分区:
文献类型:
--
作者:
Chesarone MA;Goode BL
Cells require actin nucleators to catalyze the de novo assembly of filaments and actin elongation factors to control the rate and extent of polymerization. Nucleation and elongation factors identified to date include Arp2/3 complex, formins, Ena/VASP, and newcomers Spire, Cobl, and Lmod. Here, we discuss recent advances in understanding their activities and mechanisms, and new evidence for their cooperation and interaction in vivo. Earlier models had suggested that different nucleators function independently to assemble distinct actin arrays. However, more recent observations indicate that the construction of most cellular actin networks depends on the activities of multiple actin-assembly promoting factors working in concert.
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