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Microtubule-dependent polarization. (A) Model for how the tea1/4p complex is deposited at cell ends by microtubules and recruits the formin for3p for actin cable assembly. These in turn provide tracks for the delivery of myosin V-driven cargoes to cell tips. (B) Microtubule-induced tea1/4p-independent polarization at ectopic cortical sites.
