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  • Title: Phospholamban: a crucial regulator of cardiac contractility.
    Author: MacLennan DH, Kranias EG.
    Journal: Nat Rev Mol Cell Biol; 2003 Jul; 4(7):566-77. PubMed ID: 12838339.
    Abstract:
    Heart failure is a major cause of death and disability. Impairments in blood circulation that accompany heart failure can be traced, in part, to alterations in the activity of the sarcoplasmic reticulum Ca2+ pump that are induced by its interactions with phospholamban, a reversible inhibitor. If phospholamban becomes superinhibitory or chronically inhibitory, contractility is diminished, inducing dilated cardiomyopathy in mice and humans. In mice, phospholamban seems to encumber an otherwise healthy heart, but humans with a phospholamban-null genotype develop early-onset dilated cardiomyopathy.
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