Anti-B72 antibodies enable researchers to detect and measure the B72 antigen in biological samples. This target is a reported synonym of the CD86 gene, which encodes CD86 molecule. This protein is known to function in adaptive immune responses and receptor-mediated signaling pathways, among other biological roles. The human version of B72 has a canonical amino acid length of 329 residues and a protein mass of 37.7 kilodaltons, although 6 isoforms have been identified. It is reported to be localized in the cell membrane of cells and notably expressed in many tissues, such as the cerebellum, urinary bladder, and breast. This target antigen may also be known as B7-2.