Anti-NR1I3 antibodies are used in the immunodetection of the protein nuclear receptor subfamily 1 group I member 3. In humans, the canonical protein has a reported length of 352 amino acid residues and a mass of 39.9 kDa. Its subcellular localization is in the nucleus and cytoplasm. Up to 15 different isoforms have been reported for this protein. It is reported to be highly expressed in the liver. A member of the Nuclear hormone receptor protein family, NR1I3 is known to bind and transactivates the retinoic acid response elements that control expression of the retinoic acid receptor beta 2 and alcohol dehydrogenase 3 genes. Synonyms for this target antigen include CAR1, MB67, constitutive activator of retinoid response, constitutive active receptor, constitutive active response, and CAR. NR1I3 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of NR1I3 antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. In addition, Immunohistochemistry is also a common application.