Aliases for RPN1 Gene
External Ids for RPN1 Gene
Previous GeneCards Identifiers for RPN1 Gene
This gene encodes a type I integral membrane protein found only in the rough endoplasmic reticulum. The encoded protein is part of an N-oligosaccharyl transferase complex that links high mannose oligosaccharides to asparagine residues found in the Asn-X-Ser/Thr consensus motif of nascent polypeptide chains. This protein forms part of the regulatory subunit of the 26S proteasome and may mediate binding of ubiquitin-like domains to this proteasome. [provided by RefSeq, Jul 2008]
GeneCards Summary for RPN1 Gene
RPN1 (Ribophorin I) is a Protein Coding gene. Diseases associated with RPN1 include Acute Myeloid Leukemia With Inv3(P21;Q26.2) Or T(3;3)(P21;Q26.2) and Granulomatous Disease, Chronic, Autosomal Recessive, 1. Among its related pathways are Viral mRNA Translation and Protein processing in endoplasmic reticulum. Gene Ontology (GO) annotations related to this gene include dolichyl-diphosphooligosaccharide-protein glycotransferase activity.
UniProtKB/Swiss-Prot Summary for RPN1 Gene
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. N-glycosylation occurs cotranslationally and the complex associates with the Sec61 complex at the channel-forming translocon complex that mediates protein translocation across the endoplasmic reticulum (ER). All subunits are required for a maximal enzyme activity.