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. 2001 Oct 15;155(2):261–270. doi: 10.1083/jcb.200104094

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Copyright © 2001, The Rockefeller University Press

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Figure 7. — A model depicting a bifurcated pathway downstream of Cdc42p required for polarized actin polymerization. In a formin protein-dependent manner, Cdc42p recruits a Bee1p/Vrp1p/myosin-I–containing complex to the polarization site to activate the Arp2/3 complex. The double headed arrow between myosin-I and Vrp1p/Bee1p represents a dynamic interaction. In parallel, Cdc42 recruits the PAKs, which phosphorylate and activate the motor activity of type I myosins.