Anti-HOXD4 antibodies are used in the immunodetection of the protein homeobox D4. In humans, the canonical protein has a reported length of 255 amino acid residues and a mass of 27.9 kDa. Its subcellular localization is in the nucleus. It is notably widely expressed in many tissue types. A member of the Antp homeobox protein family, HOXD4 is known to be involved with embryonic organ development and the regulation of transcription. Synonyms for this target antigen include HOX-5.1, HOX4, HOX4B, Hox-4.2, homeobox protein Hox-D4, and HHO.C13. HOXD4 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some HOXD4 antibodies may have been used in research and have associated citations. These antibodies are most commonly used in Western Blot experiments, among other applications.