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Genome Biol. 2000;1(1):REVIEWS102. Epub 2000 Apr 27.

What initiates actin polymerization?

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  • Ludwig Institute for Cancer Research, Royal Free and University College Medical School Branch, 91 Riding House Street, London W1P 8BT, UK.


For those working on the actin cytoskeleton, a major theme of the 39th annual meeting of the American Society for Cell Biology [http://www.faseb.org/ascb/meetings/am99/+ ++main99mtg.htm] (Washington DC, December 11-15, 1999) was the elucidation of how actin polymerization is initiated. The emphasis was on the regulation and localization of the Arp2/3 complex, which over the last two years has been shown to stimulate actin nucleation, and on the identification of additional proteins that interact with actin and Arp2/3 in a variety of organisms.

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