Anti-Phospholemman antibodies enable researchers to detect and measure the Phospholemman antigen in biological samples. This target is a reported synonym of the FXYD1 gene, which encodes FXYD domain containing ion transport regulator 1. This protein is known to function in the transport of ions, among other biological roles. The human version of Phospholemman has a canonical amino acid length of 92 residues and a protein mass of 10.4 kilodaltons. It is reported to be localized in the cell membrane of cells. Other names for this target antigen include PLM and sodium/potassium-transporting ATPase subunit FXYD1.