Anti-ATPase, class VI, type 11B antibodies enable researchers to detect and measure the ATPase, class VI, type 11B antigen in biological samples. This target is a reported synonym of the ATP11B gene, which encodes ATPase phospholipid transporting 11B (putative). This protein is known to function in the transport of ions and the metabolism of lipids, among other biological roles. The human version of ATPase, class VI, type 11B has a canonical amino acid length of 1177 residues and a protein mass of 134.2 kilodaltons. It is reported to be localized in the ER and Golgi of cells. Other names for this target antigen include ATPIF, ATPIR, and phospholipid-transporting ATPase IF.