Anti-ATP6V0E1 antibodies are used in the immunodetection of the protein ATPase H+ transporting V0 subunit e1. In humans, the canonical protein has a reported length of 81 amino acid residues and a mass of 9.4 kDa. Its subcellular localization is in the membrane. It is ubiquitously expressed across many tissue types. A member of the V-ATPase e1/e2 subunit protein family, ATP6V0E1 is a known subunit of the V0 complex of vacuolar(H+)-ATPase (V-ATPase), a multisubunit enzyme composed of a peripheral complex (V1) that hydrolyzes ATP and a membrane integral complex (V0) that translocates protons. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include ATP6V0E, M9.2, Vma21, Vma21p, V-type proton ATPase subunit e 1, and ATP6H. ATP6V0E1 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Western Blot is the most common application for the ATP6V0E1 antibodies listed below. ELISA and Immunohistochemistry are also common applications.