Literature DB >> 3778449

The modulatory role of myosin light chain phosphorylation in human platelet activation.

M Saitoh, M Naka, H Hidaka.   

Abstract

Myosin 20 K-Da light chain phosphorylation in human platelets was found to be catalyzed by MLCK in the early phase during collagen activation. The effect of newly synthesized selective inhibitor of MLCK, ML-9, on collagen induced platelet activation was investigated. ML-9 delayed the time course of the myosin 20 K-Da light chain phosphorylation, sequentially led to a delay in aggregation, secretion and phosphorylation of the 40K-Da peptide, in a dose-dependent fashion. It is proposed that the MLCK catalyzed phosphorylation of myosin 20 K-Da light chain may be an initial response and if so may influence the sequent reactions in the activation of platelets with collagen.

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Year:  1986        PMID: 3778449     DOI: 10.1016/0006-291x(86)91087-9

Source DB:  PubMed          Journal:  Biochem Biophys Res Commun        ISSN: 0006-291X            Impact factor:   3.575


  16 in total

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10.  Naphthalenesulfonamide derivatives ML9 and W7 inhibit catecholamine secretion in intact and permeabilized chromaffin cells.

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