The protein encoded by PLN (phospholamban) is found as a pentamer and is a major substrate for the cAMP-dependent protein kinase in cardiac muscle. The encoded protein is an inhibitor of cardiac muscle sarcoplasmic reticulum Ca(2+)-ATPase in the unphosphorylated state, but inhibition is relieved upon phosphorylation of the protein. The subsequent activation of the Ca(2+) pump leads to enhanced muscle relaxation rates, thereby contributing to the inotropic response elicited in heart by beta-agonists. The encoded protein is a key regulator of cardiac diastolic function. Mutations in PLN are a cause of inherited human dilated cardiomyopathy with refractory congestive heart failure, and also familial hypertrophic cardiomyopathy.
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Număr Catalog 772-BT-PHS00903-20ulCategorieAfaceri și industrie > Știință și laboratorFurnizorJiaxing Korain Biotech Ltd (BT Labs)GentaurDimensiune20ulTipsingle
