Abstract: Phospholamban (PLB) is a prominent regulator of myocardial contractility and a reversible inhibitor of the cardiac sarcoplasmic reticulum Ca2+ ATPase activity.

• 受磷蛋白（phospholamban）是心肌收缩的一个重要调节因子，可抑制心肌肌浆网钙ATPase的活性、降低其对钙的亲和力。