Stretch of contracting cardiac muscle abruptly decreases the rate of phosphate release at high and low calcium.

Abstract

The contractile performance of the heart is linked to the energy that is available to it. Yet, the heart needs to respond quickly to changing demands. During diastole, the heart fills with blood and the heart chambers expand. Upon activation, contraction of cardiac muscle expels blood into the circulation. Early in systole, parts of the left ventricle are… (More)
DOI: 10.1074/jbc.M112.373498

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