Anti-KCNMB4 antibodies are used in the immunodetection of the protein potassium calcium-activated channel subfamily M regulatory beta subunit 4. In humans, the canonical protein has a reported length of 210 amino acid residues and a mass of 23.9 kDa. Its subcellular localization is in the membrane. It is reported to be highly expressed in the brain. A member of the KCNMB (TC 8.A.14.1) protein family, KCNMB4 is a regulatory subunit of the calcium activated potassium KCNMA1 (maxiK) channel. Post-translational modifications have been described, including N-glycosylation and phosphorylation. Synonyms for this target antigen include BK channel beta subunit 4, BK channel subunit beta-4, BKbeta4, MaxiK channel beta-subunit 4, and calcium-activated potassium channel subunit beta-4. KCNMB4 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of KCNMB4 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.