Plasma membrane Ca(2+) -ATPase associates with CLP36, alpha-actinin and actin in human platelets.

Abstract

The plasma membrane Ca(2+)-ATPase (PMCA) plays an essential role in maintaining low cytosolic Ca(2+) in resting platelets. Earlier studies demonstrated that the 4b isoform of PMCA interacts via its C-terminal end with the PDZ domains of membrane-associated guanylate kinase proteins. Activation of saponin-permeabilized platelets in the presence of a peptide… (More)

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