Anti-HKB3 antibodies enable researchers to detect and measure the HKB3 antigen in biological samples. This target is a reported synonym of the SLC4A2 gene, which encodes solute carrier family 4 member 2. This protein is known to function in the transport of ions and osteoclast differentiation, among other biological roles. The human version of HKB3 has a canonical amino acid length of 1241 residues and a protein mass of 137 kilodaltons, although 3 isoforms have been identified. It is reported to be widely expressed in many tissue types. Other names for this target antigen include AE2, BND3L, and EPB3L1.