Anti-ATRAID antibodies are used in the immunodetection of the protein all-trans retinoic acid induced differentiation factor. In humans, the canonical protein has a reported length of 229 amino acid residues and a mass of 24.7 kDa. Its subcellular localization is in the nucleus, lysosomes, and cell membrane. Up to 3 different isoforms have been reported for this protein. It is reported to be weakly expressed in hematopoietic cell lines. ATRAID is reported to promote osteoblast cell differentiation and terminal mineralization. Post-translational modifications have been described, including glycosylation. Synonyms for this target antigen include C2orf28, HSPC013, PRO240, p18, apoptosis related protein APR-3, apoptosis-related protein 3, and APR--3. ATRAID gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some Atraid antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunofluorescence are also common applications.