PLM
Associates with and regulates the activity of the sodium/potassium-transporting ATPase (NKA) which transports Na(+) out of the cell and K(+) into the cell. Inhibits NKA activity in its unphosphorylated state and stimulates activity when phosphorylated. Reduces glutathionylation of the NKA beta-1 subunit ATP1B1, thus reversing glutathionylation-mediated inhibition of ATP1B1. Contributes to female sexual development by maintaining the excitability of neurons which secrete gonadotropin-releasing hormone. Belongs to the FXYD family. Highest expression in skeletal muscle and heart. Moderate levels in brain, placenta, lung, liver, pancreas, uterus, bladder, prostate, small intestine and colon with mucosal lining. Very low levels in kidney, colon and small intestine without mucosa, prostate without endothelial lining, spleen, and testis. Note: This description may include information from UniProtKB.
Protein type: Cell surface; Channel, misc.; Membrane protein, integral
Biological Process: negative regulation of protein glutathionylation; positive regulation of sodium ion export across plasma membrane; potassium ion transport; regulation of P-type sodium:potassium-exchanging transporter activity; sodium ion transport
