Anti-SQOR antibodies are used in the immunodetection of the protein sulfide quinone oxidoreductase. In humans, the canonical protein has a reported length of 450 amino acid residues and a mass of 50 kDa. Its subcellular localization is in the mitochondria. It is notably widely expressed in many tissue types. A member of the SQRD protein family, SQOR is known to catalyze the oxidation of hydrogen sulfide with the help of a quinone, such as ubiquinone-10, giving rise to thiosulfate and ultimately to sulfane (molecular sulfur) atoms. Synonyms for this target antigen include sulfide dehydrogenase like, sulfide quinone reductase-like, and sulfide:quinone oxidoreductase, mitochondrial. SQOR gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of SQOR 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.