NCIt definition : Cardiac phospholamban (52 aa, 6 kDa) is encoded by the human PLN gene. This protein
is involved in contractility of the heart muscle through the regulation of calcium
transport by sarcoplasmic/endoplasmic reticulum calcium ATPase 2 (ATP2A2).;
NCIt note : Cardiac phospholamban (PLN) forms pentamers localized to sarcoplasmic reticulum membranes.
PLN inhibits calcium transport by sarcoplasmic/endoplasmic reticulum calcium ATPase
2 (ATP2A2); inhibition is relieved upon phosphorylation of PLN by protein kinase A.
(EntrezGene, OMIM and UniProt);