Background: The Sarco(endo)plasmic-reticulum (SER) regulatory protein, Phospholamban (PLB), is a small, plasma membrane-associated phospho-protein found in the SER of cardiac, smooth and slow-twitch muscle. Believed to assemble into a pentamer, PLB regulates cardiac contractility and Ca2+ affinity for cardiac SER Ca2+ ATPase (SERCA2a). Non-phosphorylated PLB associates with SERCA2a, and inhibits Ca2+ reuptake into the SER. PLB activation occurs when key Serine/Threonine residues in PLB (Ser-10, Ser-16, Thr-17) are phosphorylated by numerous effectors, which include PKC, PKA, PKG, and CaM kinase. Phosphorylation of PLB causes dissociation from SERCA2a and a subsequent increase in the rate of Ca2+ reuptake into the SER, which accelerates ventricular relaxation.
Description: Rabbit polyclonal to Phospholamban
Immunogen: KLH conjugated synthetic peptide derived from Phospholamban
Specificity: ·Reacts with Human, Mouse and Rat.
·Isotype: IgG
Application: ·Western blotting: 1/100-500. Predicted Mol wt: 6 kDa;
·Immunohistochemistry (Paraffin/frozen tissue section): 1/50-200;
·Immunocytochemistry/Immunofluorescence: 1/100;
·Immunoprecipitation: 1/50;
·ELISA: 1/500;
·Optimal working dilutions must be determined by the end user.