Anti-ATP9B antibodies are used in the immunodetection of the protein ATPase phospholipid transporting 9B (putative). In humans, the canonical protein has a reported length of 1147 amino acid residues and a mass of 129.3 kDa. Its subcellular localization is in the Golgi. Up to 2 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the Cation transport ATPase (P-type) (TC 3.A.3) protein family, ATP9B is known to be involved with endocytosis and the metabolism of lipids. Synonyms for this target antigen include ATPase type IV, phospholipid transporting (P-type), ATPase, class II, type 9B, macrophage MHC receptor 1, and probable phospholipid-transporting ATPase IIB. ATP9B gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Indicated applications for ATP9B antibodies listed below include ELISA, Western Blot, Immunocytochemistry, and Immunohistochemistry.