p85 binds to G-actin in a Ca(2+)/calmodulin-dependent manner, thus regulating the initiation of cytokinesis in tetrahymena.


Tetrahymena p85 is localized to the presumptive division plane before the formation of contractile ring microfilaments. p85 binds to calmodulin in a Ca(2+)-dependent manner and both proteins colocalize to the division furrow. Inhibition of the binding of p85 and Ca(2+)/calmodulin prevents both the localization of p85 and calmodulin to the division plane and… (More)


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