Anti-TSTD3 antibodies are used in the immunodetection of the protein thiosulfate sulfurtransferase like domain containing 3. In humans, the canonical protein has a reported length of 97 amino acid residues and a mass of 11.3 kDa. Synonyms for this target antigen include rhodanese domain-containing protein 3, thiosulfate sulfurtransferase (rhodanese)-like domain containing 3, and thiosulfate sulfurtransferase/rhodanese-like domain-containing protein 3. TSTD3 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.