Anti-NDUFB3 antibodies are used in the immunodetection of the protein NADH:ubiquinone oxidoreductase subunit B3. In humans, the canonical protein has a reported length of 98 amino acid residues and a mass of 11.4 kDa. Its subcellular localization is in the mitochondria. It is notably widely expressed in many tissue types. A member of the Complex I NDUFB3 subunit protein family, NDUFB3 is reported to be an accessory subunit the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I), that is believed not to be involved in catalysis. Synonyms for this target antigen include CI-B12, MC1DN25, NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3, NADH dehydrogenase (ubiquinone) 1 beta subcomplex, 3, 12kDa, NADH-ubiquinone oxidoreductase B12 subunit, and B12. NDUFB3 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some NDUFB3 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.