LIM kinase and Diaphanous cooperate to regulate serum response factor and actin dynamics
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منابع مشابه
LIM kinase and Diaphanous cooperate to regulate serum response factor and actin dynamics
The small GTPase RhoA controls activity of serum response factor (SRF) by inducing changes in actin dynamics. We show that in PC12 cells, activation of SRF after serum stimulation is RhoA dependent, requiring both actin polymerization and the Rho kinase (ROCK)-LIM kinase (LIMK)-cofilin signaling pathway, previously shown to control F-actin turnover. Activation of SRF by overexpression of wild-t...
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A signalling pathway has recently been delineated that connects Rho-family GTPases to the cytoskeleton via LIM kinase and the F-actin depolymerising protein cofilin. The existence of this pathway helps to explain some of the effects of LIM kinase and cofilin in the control of actin dynamics.
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The rapid turnover of actin filaments and the tertiary meshwork formation are regulated by a variety of actin-binding proteins. Protein phosphorylation of cofilin, an actin-binding protein that depolymerizes actin filaments, suppresses its function. Thus, cofilin is a terminal effector of signaling cascades that evokes actin cytoskeletal rearrangement. When wild-type LIMK2 and kinase-dead LIMK2...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 2002
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.200203126