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Integrin signaling, stimulated by cell adhesion to the extracellular matrix, plays a critical role in coordinating changes in cell morphology and migration. The requisite remodeling of the cytoskeleton is controlled by the Rho family of small GTPases, which are, in turn, regulated via activation by guanine-nucleotide exchange factors (GEFs) and inactivation by GTPase-activating proteins (GAPs). However,...
The focal adhesion protein Hic-5, a homologue to paxillin, has been shown to be tyrosine-phosphorylated in fibroblasts in response to stimuli such as osmotic stress, serum, LPA and endothelin. However, the function of this modification to Hic-5 is unclear. Herein, we show that Hic-5 is tyrosine-phosphorylated on residues 38 and 60 following epidermal growth factor (EGF) treatment of COS-7 cells, coincident...
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