Differential regulation of cardiac actomyosin S-1 MgATPase by protein kinase C isozyme-specific phosphorylation of specific sites in cardiac troponin I and its phosphorylation site mutants.

Abstract excerpt

The significance of site-specific phosphorylation by protein kinase C (PKC) isozymes alpha and delta and protein kinase A (PKA) of troponin I (TnI) and its phosphorylation site mutants in the regulation of Ca(2+)-stimulated MgATPase activity of reconstituted actomyosin S-1 was investigated. The g...

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