Anti-KCNE3 antibodies are used in the immunodetection of the protein potassium voltage-gated channel subfamily E regulatory subunit 3. In humans, the canonical protein has a reported length of 103 amino acid residues and a mass of 11.7 kDa. Its subcellular localization is in the cell membrane and cytoplasm. It is reported to be expressed in hippocampal neurons. A member of the Potassium channel KCNE protein family, KCNE3 is reported to be an ancillary protein that assembles as a beta subunit with a voltage-gated potassium channel complex of pore-forming alpha subunits. Synonyms for this target antigen include HOKPP, HYPP, MiRP2, potassium voltage-gated channel subfamily E member 3, cardiac voltage-gated potassium channel accessory subunit, and BRGDA6. KCNE3 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of KCNE3 antibodies have been mentioned in research publications and have associated citations. Immunohistochemistry is a widely used application for these antibodies. ELISA, Western Blot, and Immunofluorescence are also common applications.