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Information on EC 2.4.99.19 - undecaprenyl-diphosphooligosaccharide-protein glycotransferase

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IUBMB Comments
A bacterial enzyme that has been isolated from Campylobacter jejuni and Campylobacter lari . It forms a glycoprotein by the transfer of a glucosyl-N-acetylgalactosaminyl-N,N'-diacetylbacillosamine (GalNAc2(Glc)GalNAc3diNAcBac) polysaccharide and related oligosaccharides to the side-chain of an L-asparagine residue in the sequence -Asp/Glu-Xaa-Asn-Xaa'-Ser/Thr- (Xaa and Xaa' not Pro) in nascent polypeptide chains. Requires Mn2+ or Mg2+. Occurs on the external face of the plasma membrane. The polyprenol involved is normally tritrans,heptacis-undecaprenol but a decaprenol is used by some species.
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Word Map
The enzyme appears in viruses and cellular organisms
Synonyms
pglb2, bacterial oligosaccharyltransferase, n-oligosaccharyltransferase, bacterial ost, oligosacharyltransferase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
tritrans,heptacis-undecaprenyl diphosphooligosaccharide + [protein]-L-asparagine = tritrans,heptacis-undecaprenyl diphosphate + a glycoprotein with the oligosaccharide chain attached by N-beta-D-glycosyl linkage to protein L-asparagine
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PATHWAY SOURCE
PATHWAYS
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