Anti-RPN2 antibodies are used in the immunodetection of the protein ribophorin II. In humans, the canonical protein has a reported length of 631 amino acid residues and a mass of 69.3 kDa. Its subcellular localization is in the ER. Up to 2 different isoforms have been reported for this protein. It is reported to be expressed in all tissues tested. A member of the SWP1 protein family, RPN2 is a known subunit of the oligosaccharyl transferase (OST) complex that catalyzes the initial transfer of a defined glycan (Glc(3)Man(9)GlcNAc(2) in eukaryotes) from the lipid carrier dolichol-pyrophosphate to an asparagine residue within an Asn-X-Ser/Thr consensus motif in nascent polypeptide chains, the first step in protein N-glycosylation. Synonyms for this target antigen include RPN-II, RPNII, SWP1, dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit 2, and RIBIIR. RPN2 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of RPN2 antibodies have been mentioned in research publications and have associated citations. Western Blot and Immunohistochemistry are common applications for these antibodies.