KEGG   ENZYME: 2.4.1.144Help
Entry
EC 2.4.1.144                Enzyme                                 

Name beta-1,4-mannosyl-glycoprotein
4-beta-N-acetylglucosaminyltransferase;
N-acetylglucosaminyltransferase III;
N-glycosyl-oligosaccharide-glycoprotein
N-acetylglucosaminyltransferase III;
uridine diphosphoacetylglucosamine-glycopeptide
beta4-acetylglucosaminyltransferase III;
beta-1,4-mannosyl-glycoprotein
beta-1,4-N-acetylglucosaminyltransferase;
GnTIII
Class Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname UDP-N-acetyl-D-glucosamine:beta-D-mannosyl-glycoprotein
4-beta-N-acetyl-D-glucosaminyltransferase
Reaction(IUBMB) UDP-N-acetyl-D-glucosamine + beta-D-mannosyl-R = UDP +
4-(N-acetyl-beta-D-glucosaminyl)-beta-D-mannosyl-R [RN:R07259]
Reaction(KEGG) R07259;
(other) R05986(G)
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Substrate UDP-N-acetyl-D-glucosamine [CPD:C00043];
beta-D-mannosyl-R [CPD:C04942]
Product UDP [CPD:C00015];
4-(N-acetyl-beta-D-glucosaminyl)-beta-D-mannosyl-R [CPD:C15544]
Comment R represents the remainder of the N-linked oligosaccharide in the
glycoprotein acceptor (click here for diagram). The action of this
enzyme probably prevents further attachment of N-acetylglucosamine
residues to the growing carbohydrate chain.
Pathway PATH: ec00510  N-Glycan biosynthesis
PATH: ec01100  Metabolic pathways
Orthology KO: K00737  beta-1,4-mannosyl-glycoprotein
            beta-1,4-N-acetylglucosaminyltransferase
Genes HSA: 4248(MGAT3)
PTR: 470218(MGAT3)
MCC: 703643(MGAT3)
MMU: 17309(Mgat3)
RNO: 29582(Mgat3)
CFA: 481244(MGAT3)
BTA: 520087(MGAT3)
ECB: 100055333(MGAT3)
MDO: 100012345
OAA: 100090777
GGA: 418013(MGAT3)
TGU: 100226352
DRE: 570828
NVE: NEMVE_v1g217354
OLU: OSTLU_18822
Taxonomy
Reference
  Authors
  Title



  Journal
  Organism
1  [PMID:6213618]
Narasimhan S.
Control of glycoprotein synthesis. UDP-GlcNAc:glycopeptide beta
4-N-acetylglucosaminyltransferase III, an enzyme in hen oviduct
which adds GlcNAc in beta 1-4 linkage to the beta-linked mannose of
the trimannosyl core of N-glycosyl oligosaccharides.
J. Biol. Chem. 257 (1982) 10235-42.
Gallus gallus [GN:gga]
Reference
  Authors
  Title

  Journal
2  [PMID:6366476]
Schachter H, Narasimhan S, Gleeson P, Vella G.
Glycosyltransferases involved in elongation of N-glycosidically
linked oligosaccharides of the complex or N-acetyllactosamine type.
Methods. Enzymol. 98 (1983) 98-134.
Other DBs ExplorEnz - The Enzyme Database: 2.4.1.144
IUBMB Enzyme Nomenclature: 2.4.1.144
ExPASy - ENZYME nomenclature database: 2.4.1.144
BRENDA, the Enzyme Database: 2.4.1.144
CAS: 83744-93-8

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