Anti-SPRR1B antibodies are used in the immunodetection of the protein small proline rich protein 1B. In humans, the canonical protein has a reported length of 89 amino acid residues and a mass of 9.9 kDa. Its subcellular localization is in the cytoplasm. A member of the Cornifin (SPRR) protein family, SPRR1B is known to be involved with epidermis development and keratinocyte differentiation. Synonyms for this target antigen include GADD33, SPR-IB, SPRR1, cornifin-B, 14.9 kDa pancornulin, small proline-rich protein IB, and CORNIFIN. SPRR1B gene orthologs have been reported in the mouse and chimpanzee species. Some SPRR1B antibodies may have been used in research and have associated citations. ELISA, Western Blot, and Immunohistochemistry are common applications for these antibodies.