Anti-SRY-box transcription factor 13 antibodies are used for the immunodetection of the protein encoded by the SOX13 gene. In humans, the canonical protein has a reported length of 622 amino acid residues and a mass of 69.2 kDa. Its subcellular localization is in the nucleus and cytoplasm. It is reported to be expressed in exocrine cells and islets of Langerhans in the pancreas. It is reported to be a transcription factor that binds to DNA at the consensus sequence 5'-AACAAT-3'. Other names for this target antigen include transcription factor SOX-13, SRY (sex determining region Y)-box 13, SRY-box 13, SRY-related HMG-box gene 13, islet cell antibody 12, and ICA12. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.