Entry |
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Name |
beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase;
O-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase II;
uridine diphosphoacetylglucosamine-mucin beta(1->3)-acetylglucosaminyltransferase (elongating);
elongation 3beta-GalNAc-transferase;
UDP-N-acetyl-D-glucosamine:O-glycosyl-glycoprotein (N-acetyl-D-glucosamine to beta-D-galactose of beta-D-galactosyl-1,3-(N-acetyl-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R) beta-1,3-N-acetyl-D-glucosaminyltransferase;
UDP-N-acetyl-D-glucosamine:beta-D-galactosyl-(1->3)-[N-acetyl-D-glucosaminyl-(1->6)]-N-acetyl-D-galactosaminyl-R 3-beta-N-acetyl-D-glucosaminyltransferase;
B3GNT3 (gene name)
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Class |
Transferases;
Glycosyltransferases;
Hexosyltransferases
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Sysname |
UDP-N-acetyl-alpha-D-glucosamine:3-O-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein] 3-beta-N-acetyl-D-glucosaminyltransferase (configuration-inverting)
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Reaction(IUBMB) |
UDP-N-acetyl-alpha-D-glucosamine + 3-O-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein] = UDP + 3-O-{N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein] [RN: R04636 R05901]
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Reaction(KEGG) |
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Substrate |
UDP-N-acetyl-alpha-D-glucosamine [CPD: C00043];
3-O-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein]
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Product |
UDP [CPD: C00015];
3-O-{N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein]
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Comment |
The enzyme catalyses the addition of N-acetyl-alpha-D-glucosamine to the core 2 structure of O-glycans.
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History |
EC 2.4.1.146 created 1984, modified 2018
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Orthology |
K07970 | beta-1,3-N-acetylglucosaminyltransferase 3 |
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Genes |
» show all
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Reference |
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Authors |
Brockhausen I, Rachaman ES, Matta KL, Schachter H. |
Title |
The separation by liquid chromatography (under elevated pressure) of phenyl, benzyl, and O-nitrophenyl glycosides of oligosaccharides. Analysis of substrates and products for four N-acetyl-D-glucosaminyl-transferases involved in mucin synthesis. |
Journal |
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Reference |
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Authors |
Shiraishi N, Natsume A, Togayachi A, Endo T, Akashima T, Yamada Y, Imai N, Nakagawa S, Koizumi S, Sekine S, Narimatsu H, Sasaki K |
Title |
Identification and characterization of three novel beta 1,3-N-acetylglucosaminyltransferases structurally related to the beta 1,3-galactosyltransferase family. |
Journal |
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Sequence |
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Other DBs |
ExPASy - ENZYME nomenclature database: | 2.4.1.146 |
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