Anti-RFXAP antibodies are used in the immunodetection of the protein regulatory factor X associated protein. In humans, the canonical protein has a reported length of 272 amino acid residues and a mass of 28.2 kDa. Its subcellular localization is in the nucleus. It is ubiquitously expressed across many tissue types. RFXAP is known to be a part of the RFX complex that binds to the X-box of MHC II promoters. Post-translational modifications have been described, including phosphorylation. The RFXAP gene has been associated with the disease, Bare lymphocyte syndrome. Synonyms for this target antigen include RFX DNA-binding complex 36 kDa subunit and RFX-associated protein. RFXAP gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some RFXAP antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. In addition, ELISA is also a common application.