A protein complex that is found in the endoplasmic reticulum membrane of eukaryotes and transfers lipid-linked oligosaccharide precursor to asparagine residues on nascent proteins. In yeast, the complex includes at least nine different subunits, whereas in mammalian cells at least three different forms of the complex have been detected. (Gene Ontology, GO_0008250)
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10 proteins localized to the oligosaccharyltransferase complex cellular component from the COMPARTMENTS Curated Protein Localization Evidence Scores dataset.