Anti-k(v)1.2 antibodies enable researchers to detect and measure the k(v)1.2 antigen in biological samples. This target is a reported synonym of the KCNA2 gene, which encodes potassium voltage-gated channel subfamily A member 2. This protein is known to function in nervous system development and potassium ion transport, among other biological roles. The human version of k(v)1.2 has a canonical amino acid length of 499 residues and a protein mass of 56.7 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane of cells and notably expressed in the cerebellum and cerebral cortex. Other names for this target antigen include DEE32, EIEE32, and HBK5.