Anti-PEX1 antibodies are used in the immunodetection of the protein peroxisomal biogenesis factor 1. In humans, the canonical protein has a reported length of 1283 amino acid residues and a mass of 142.9 kDa. Its subcellular localization is in the cytoplasm. Up to 2 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the breast, urinary bladder, and appendix. A member of the AAA ATPase protein family, PEX1 is a known component of the PEX1-PEX6 AAA ATPase complex, a protein dislocase complex that mediates the ATP-dependent extraction of the PEX5 receptor from peroxisomal membranes, an essential step for PEX5 recycling. Synonyms for this target antigen include PBD1A, PBD1B, ZWS, ZWS1, peroxisomal ATPase PEX1, Zellweger syndrome, peroxin-1, and HMLR1. PEX1 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of PEX1 antibodies have been mentioned in research publications and have associated citations. ELISA is a widely used application for these antibodies. In addition, Western Blot is also a common application.