Purification and characterization of a gelsolin-actin complex from human platelets. Evidence for Ca2+-insensitive functions.

Abstract

Extracts of human platelets contain a 90,000-Da protein that is retained by DNase I-agarose in the presence of Ca2+. The 90-kDa protein, tightly complexed with platelet actin, can be eluted from DNase I-agarose by ethylene glycol bis(beta-aminoethyl ether)-N, N,N',N'-tetraacetic acid (EGTA). The platelet 90-kDa protein is immunologically related to rabbit… (More)

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