Anti-KCNMB3 antibodies are used in the immunodetection of the protein potassium calcium-activated channel subfamily M regulatory beta subunit 3. In humans, the canonical protein has a reported length of 279 amino acid residues and a mass of 31.6 kDa. Its subcellular localization is in the membrane. Up to 5 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the appendix and colon. A member of the KCNMB (TC 8.A.14.1) protein family, KCNMB3 is a regulatory subunit of the calcium activated potassium KCNMA1 (maxiK) channel. Post-translational modifications have been described, including N-glycosylation. Synonyms for this target antigen include HBETA3, K(VCA)BETA-3, KCNMB2, KCNMBL, SLO-BETA-3, and BKBETA3. KCNMB3 gene orthologs have been reported in the mouse, rat, bovine, frog and chimpanzee species. A number of KCNMB3 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.