Anti-REXO1 antibodies are used in the immunodetection of the protein RNA exonuclease 1 homolog. In humans, the canonical protein has a reported length of 1221 amino acid residues and a mass of 131.5 kDa. Its subcellular localization is in the nucleus. It is ubiquitously expressed across many tissue types. It is a member of the REXO1/REXO3 protein family. Synonyms for this target antigen include elongin-A-binding protein 1, transcription elongation factor B polypeptide 3-binding protein 1, and REX1, RNA exonuclease 1 homolog. REXO1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some REXO1 antibodies may have been used in research and have associated citations. Immunohistochemistry is a widely used application for these antibodies. In addition, ELISA is also a common application.