Anti-P76 antibodies enable researchers to detect and measure the P76 antigen in biological samples. This target is a reported synonym of the TM9SF2 gene, which encodes transmembrane 9 superfamily member 2. This protein is known to function in metabolic processes, among other biological roles. The human version of P76 has a canonical amino acid length of 663 residues and a protein mass of 75.8 kilodaltons. It is reported to be localized in the endosome, Golgi, and cytoplasm of cells and widely expressed in many tissue types. P76 is a member of the Nonaspanin (TM9SF) (TC 9.A.2) protein family.