Anti-SRY-box transcription factor 15 antibodies are used for the immunodetection of the protein encoded by the SOX15 gene. In humans, the canonical protein has a reported length of 233 amino acid residues and a mass of 25.3 kDa. Its subcellular localization is in the nucleus. Alternative splicing is reported to yield 2 different isoforms for this protein. It is found to be widely expressed in fetal and adult tissues examined, highest level found in fetal spinal cord and adult brain and testis. It is reported to be a transcription factor that binds to DNA at the 5'-AACAATG-3' consensus sequence (By similarity). Other names for this target antigen include SOX26, SOX27, protein SOX-15, SRY (sex determining region Y)-box 15, SRY (sex determining region Y)-box 20, and SOX20. Gene orthologs have been identified in the mouse, bovine, frog and chimpanzee species.