Anti-EBN2 antibodies enable researchers to detect and measure the EBN2 antigen in biological samples. This target is a reported synonym of the KCNQ3 gene, which encodes potassium voltage-gated channel subfamily Q member 3. This protein is known to function in chemical synaptic transmission and cellular localization, among other biological roles. The human version of EBN2 has a canonical amino acid length of 872 residues and a protein mass of 96.7 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the cell membrane of cells. Other names for this target antigen include BFNC2 and BFNC2.