Rho GEF
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Related Articles from SNS
Constitutive plasma membrane interaction of active Rho GEF Ect2 inhibits cortex contraction pulses
During cell division, multiple guanine nucleotide exchange factors (GEFs), including the mitotic regulator Ect2 and Lbc-type GEFs, regulate the dynamics of RhoA activity and actomyosin contractility. In interphase, Lbc-type GEFs are predominantly cytosolic and are transiently recruited to the plasma membrane via a Rho-dependent positive-feedback mechanism that generates stochastic pulses of Rho activity and cortical contractions. In contrast, during interphase, Ect2 is primarily sequestered...