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Information on EC 2.4.1.101 - alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase
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EC Tree
2.4.1.101 alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferaseIUBMB Comments
The enzyme, found in plants and animals, participates in the processing of N-glycans in the Golgi apparatus. Its action is required before the other N-acetylglucosaminyltransferases involved in the process (GlcNAcT-II through VI) can act. While the natural substrate (produced by EC 3.2.1.113, mannosyl-oligosaccharide 1,2-alpha-mannosidase) is described here, the minimal substrate recognized by the enzyme is alpha-D-Man-(1->3)-beta-D-Man-R.
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Word Map
- 2.4.1.101
- n-glycans
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n-linked
- glycosyltransferases
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mannosidase
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oligomannose
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high-mannose
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complex-type
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paucimannose
- swainsonine
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golgi-resident
- beta-1,4-galactosyltransferase
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paucimannosidic
- man3glcnac2
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medial-golgi
- glcnacman5glcnac2
- biotechnology
- medicine
- molecular biology
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
n-acetylglucosaminyltransferase i, glcnac-ti, gnt i, gnt-i, gly-13, gly-12, glcnac transferase i, glcnac-t i, gly-14, glcnact-i, 
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-alpha-1,3-mannosylglycoprotein beta-1,2-N-
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alpha-1,3-mannosyl-glycoprotein beta-1,2-N-acetylglucosaminyltransferase
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AtGnTI
ChGnTI
EC 2.4.1.51
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formerly, part transferred
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GlcNAc-T I
gly-12
GLY-13
gly-14
GnT I
GnT-I
GnTI
MGAT1
N-acetylglucosaminyltransferase I
N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase I
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TbGnTI
UDP-GlcNAc:alpha3-D-mannoside beta1,2-N-acetylglucosaminyltransferase
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UDP-GlcNAc:alpha3-D-mannoside beta1,2-N-acetylglucosaminyltransferase I
UDP-GlcNac:alpha3-D-mannoside beta1,2-Nacetylglucosaminyltransferase I
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UDP-GlcNAc:alpha3-D-mannoside beta1-2-N-acetylglucosaminyltransferase I
UDP-N-acetyl-D-glucosamine:glycoprotein (N-acetyl-D-glucosamine to alpha-D-mannosyl-1,3-(R1)-beta-D-mannosyl-R2) beta-1,2-N-acetyl-D-glucosaminyltransferase
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UDP-N-acetylglucosamine:alpha-3-D-mannoside beta-1,2-N-acetylglucosaminyltransferase I
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UDP-N-acetylglucosaminyl:alpha-1,3-D-mannoside-beta-1,2-N-acetylglucosaminyltransferase I
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UDP-N-acetylglucosaminyl:alpha-3-D-mannoside beta-1,2-N-acetylglucosaminyltransferase I
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UDP-N-GlcNAc:alpha3-D-mannoside beta-1,2-N-acetylglucosaminyltransferase I
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uridine diphosphoacetylglucosamine-alpha-1,3-mannosylglycoprotein beta-1,2-N-acetylglucosaminyltransferase
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N-acetylglucosaminyltransferase I
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UDP-GlcNAc:alpha3-D-mannoside beta1,2-N-acetylglucosaminyltransferase I
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UDP-GlcNAc:alpha3-D-mannoside beta1,2-N-acetylglucosaminyltransferase I
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UDP-GlcNAc:alpha3-D-mannoside beta1-2-N-acetylglucosaminyltransferase I
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UDP-GlcNAc:alpha3-D-mannoside beta1-2-N-acetylglucosaminyltransferase I
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
mechanism
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UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
active site
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
active site
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
R represents the reminder of the N-linked oligosaccharide in the glycoprotein acceptor. Note that this enzyme acts before N-acetylglucosaminyltransferase II, III, IV, V and VI.
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UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
ordered sequential bi bi mechanism
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
R303 is important for enzyme activity, conserved throughout all species
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
SGC domain of SGC superfamily
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
DxD motif
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
D212 is the central residue of the DxD motif, conserved throughout all species
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein] = UDP + Man5GlcNAc3-[protein]
modeling study provides detailed insight into the mechanism of the GlcNAc transfer
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hexosyl group transfer
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SYSTEMATIC NAME
IUBMB Comments
UDP-N-acetyl-alpha-D-glucosamine:alpha-D-mannosyl-(1->3)-beta-D-mannosyl-glycoprotein 2-beta-N-acetyl-D-glucosaminyltransferase (configuration-inverting)
The enzyme, found in plants and animals, participates in the processing of N-glycans in the Golgi apparatus. Its action is required before the other N-acetylglucosaminyltransferases involved in the process (GlcNAcT-II through VI) can act. While the natural substrate (produced by EC 3.2.1.113, mannosyl-oligosaccharide 1,2-alpha-mannosidase) is described here, the minimal substrate recognized by the enzyme is alpha-D-Man-(1->3)-beta-D-Man-R.
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CAS REGISTRY NUMBER
COMMENTARY
102576-81-8
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SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
UDP + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetylglucosamine
?
UDP + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosamine-1,4-N-acetyl-D-glucosamine
?
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?
UDP + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
?
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?
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-pyridinylamine
?
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?
UDP + [Manalpha6(Manalpha3)Manalpha6][Manalpha3]Man-beta4-N-acetyl-D-glucosamine-beta4-N-acetyl-D-glucosamine-Asn
?
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?
UDP-N-acetyl-D-glucosamine + 2-deoxy-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP-N-acetyl-D-glucosamine + 3-O-(4,4-azopentyl)-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + 3-O-(4,5-epoxypentyl)-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + 3-O-(5-iodoacetamidopentyl)-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + 3-O-pentyl-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + 4-O-methyl-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + 6-O-methyl-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP-N-acetyl-D-glucosamine + asialofetuin
?
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beta-galactosidase-, beta-N-acetylhexosamidase- and alpha-mannosidase-treated asialofetuin, beta-galactosidase- and beta-N-acetylhexosamidase-treated asialofetuin
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?
UDP-N-acetyl-D-glucosamine + beta-galactosidase- and beta-N-acetylhexosamidase-treated asialotransferrin
?
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?
UDP-N-acetyl-D-glucosamine + desialo-degalacto-dehexosamine-orosomucoid
?
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?
UDP-N-acetyl-D-glucosamine + fowl plague virus hemagglutinin
UDP + fowl plague virus hemagglutinin with terminal N-acetyl-D-glucosaminyl residues
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recombinant coexpression of enzyme and substrate in SF9 insect cells
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?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta(1-2)Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
UDP + GlcNAcbeta(1-2)Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
3.9% activity compared to Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
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?
UDP-N-acetyl-D-glucosamine + GlcUAcbeta1-3Galbeta1-O-naphthalenemethanol
?
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synthetic substrate
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?
UDP-N-acetyl-D-glucosamine + Man3Man-O-beta4-N-acetyl-D-glucosamine
UDP + ?
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?
UDP-N-acetyl-D-glucosamine + Man5-RNAse B
UDP + RNAse B-GlcNAc2-Man5-GlcNAc
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wild type hGnT1 and mutants C121A, C121S and R120A/C121H transfer GlcNAc from UDP-GlcNAc to the glycoprotein acceptor Man5-RNAse B, whereas mutants C121T and C121D are inactive. After 1 h, the wild-type MBP-hGnT1(D103) and C121A mutant convert more than 50% of RNAse BM5 to RNAse BM5Gn, while the C121S mutant shows less than 25% conversion. The wild-type MBP-hGnT1(D103) and both C121A and C121S mutants convert RNAse BM5 nearly completely to RNAse BM5Gn following overnight incubation. The R120A/C121H mutant is less active than the wild-type and the single mutants. It converts more than half of the RNAse BM5 into RNAse BM5Gn after 17 h
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?
UDP-N-acetyl-D-glucosamine + Man5GlcNAc2-glycopeptide
UDP + GlcNAc(1-2)Man5GlcNAc2-glycopeptide
UDP-N-acetyl-D-glucosamine + Manalpha(1-2)Manalpha(1-3)[Manalpha(1-6)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
UDP + Manalpha(1-2)Manalpha(1-3)[Manalpha(1-6)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
0.5% activity compared to Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
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?
UDP-N-acetyl-D-glucosamine + Manalpha(1-3)Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-R
UDP + Manalpha(1-3)Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-R
UDP-N-acetyl-D-glucosamine + Manalpha(1-3)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
UDP + GlcNAcbeta(1-2)Manalpha(1-3)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
0.7% activity compared to Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
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?
UDP-N-acetyl-D-glucosamine + Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
UDP + Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
100% activity
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?
UDP-N-acetyl-D-glucosamine + Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-R
UDP + Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-R
UDP-N-acetyl-D-glucosamine + Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
UDP + Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
6.9% activity compared to Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
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?
UDP-N-acetyl-D-glucosamine + Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-R
UDP + Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-R
UDP-N-acetyl-D-glucosamine + Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)[Fucalpha(1-3)]GlcNAc-pyridylaminoside
UDP + Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)[Fucalpha(1-3)]GlcNAc-pyridylaminoside
6.2% activity compared to Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside
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?
UDP-N-acetyl-D-glucosamine + Manalpha1,6(Manalpha1,3)Manbeta-1-O-octyl
UDP + GlcNAc(1-2)Manalpha(1-6)Manalpha(1-3)Manbeta-1-O-octyl
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?
UDP-N-acetyl-D-glucosamine + Manalpha1,6(Manalpha1,3)Manbeta-1-O-octyl
UDP + GlcNAcalpha(1-2)Manalpha(1-6)Manalpha(1-3)Manbeta-1-O-octyl
-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(4-deoxy-Manalpha3)Man-beta-octyl
UDP + ?
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-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(4-O-(5-iodoacetamidopentyl)-Manalpha3)Man-beta-octyl
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(4-O-methyl-Manalpha3)Man-beta-octyl
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(Manalpha3)Man-O-beta hexyl
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(Manalpha3)Man-O-beta(8-methoxycarbonyl)octyl
UDP + ?
-
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-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(Manalpha3)Man-O-beta-octyl
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(Manalpha3)Man-O-beta4-N-acetyl-D-glucosamine
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + Manalpha6(Manalpha3)Man-O-beta4-N-acetyl-D-glucosamine-beta4(L-fucose-alpha6)-N-acetyl-D-glucosamine-Asn
UDP + ?
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + Manalpha6(Manalpha3)Man-O-beta4-N-acetyl-D-glucosamine-beta4-N-acetyl-D-glucosamine
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + N-acetyl-D-glucosamine-beta2-Manalpha6(Manalpha3)Man-beta4-N-acetyl-D-glucosamine
UDP + ?
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetylglucosamine-1,4-(fucose-1,6)-N-acetyl-glucosamine-Asn-peptide
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetylglucosamine-1,4-(fucose-1,6)-N-acetyl-glucosamine-Asn-peptide
UDP-N-acetyl-D-glucosamine + R-Manalpha6(Manalpha3)Man-beta-octyl
UDP + ?
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-
-
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?
UDP-N-acetyl-D-glucosamine + [Manalpha(1-6)Manalpha(1-3)Manalpha(1-6)][Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-Asn
UDP + ?
-
-
-
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?
UDP-N-acetyl-D-glucosamine + [Manalpha1,6(Manalpha1,3)Manalpha1,6](Manalpha1,3)Manbeta1,4GlcAcbeta1,4GlcNAc-R
UDP + ?
-
-
-
-
?
UDP-N-acetylglucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-(N-acetyl-beta-D-glucosaminyl)-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
-
?
UDP-N-acetylglucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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regioselective and stereoselective addition of beta-1,2-N-acetylglucosamine to a high mannose oligosaccharide from yeast, room temperature, 2.7fold excess of UDP-N-acetylglucosamine over the oligosaccharide substrate, 20 mM HEPES, pH 7.5, 150 mM NaCl, 20 mM MnCl2
-
-
?
UDP + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetylglucosamine
?
-
-
-
-
?
UDP + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetylglucosamine
?
-
-
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein]
UDP + Man5GlcNAc3-[protein]
-
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein]
UDP + Man5GlcNAc3-[protein]
-
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + Man5GlcNAc2-[protein]
UDP + Man5GlcNAc3-[protein]
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
GlcNAc transfer catalyzed by GnT-I is the first step in the conversion of high mannose oligosaccharides to complex and hybrid N-glycan structures
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
enzyme TbGnTI transfers UDP-GlcNAc to biantennary Man3GlcNAc2, but not to triantennary Man5GlcNAc2, which is the preferred substrate for metazoan enzymes
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
enzyme TbGnTI transfers UDP-GlcNAc to biantennary Man3GlcNAc2, but not to triantennary Man5GlcNAc2, which is the preferred substrate for metazoan enzymes
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
pyridylamine
R: pyridylamine
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: H
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
1,4-N-acetyl-D-glucosaminyl-R
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
1,4-N-acetyl-D-glucosaminyl-R
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
1,4-N-acetyl-D-glucosaminyl-R
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: H
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: H
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
1,4-N-acetyl-D-glucosaminyl-Asn
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
1,4-N-acetyl-D-glucosaminyl-R
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
synthetic-beta-D-mannosyl-(1,6-anhydro)-derivative acts as substrate, too
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
pyridylamine
R: pyridylamine
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
no activity with pyridylaminated substrate
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: H
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
1,4-N-acetyl-D-glucosaminyl-R
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
recombinant isozyme A and B mutant T223A
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
pyridylamine
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
UDP + N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-beta-D-mannosyl-1,4-N-acetyl-D-glucosamine
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
stimulates galactosyltransferase of bovine milk
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
key enzyme of biosynthesis of complex and hybrid N-glycans
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
key enzyme of biosynthesis of complex and hybrid N-glycans
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
key enzyme of biosynthesis of complex and hybrid N-glycans
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-Asn-peptide
-
key enzyme of biosynthesis of complex and hybrid N-glycans
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: pyridinylamine
pyridinylamine
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: H
R: H, R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn, R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: 4-N-acetyl-D-glucosaminyl-Asn-peptide
R: H, R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn, R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
can act on alpha-mannosyl-1,6-beta-mannosyl-terminus if alpha-mannosyl-1,3-beta-mannosyl-terminus is not available, appreciable higher Km-value
R: H, R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn, R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
does not act on alpha-mannosyl-1,2-alpha-mannosyl-, alpha-mannosyl-1,3-alpha-mannosyl-, alpha-mannosyl-1,6-alpha-mannosyl-termini
R: H, R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn, R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn
R: H, R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn, R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: 1,4-N-acetyl-D-glucosaminyl-Asn
R: H, R: (fucose-1,6)-1,4-N-acetyl-D-glucosaminyl-Asn, R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
R: 1,4-N-acetyl-D-glucosaminyl-Asn
R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
-
transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
-
substrate specificity
-
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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substrate specificity
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?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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substrate specificity
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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substrate specificity
R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: H
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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essential for activity: unsubstituted equatorial hydroxyl on C-4 of beta-linked mannosyl-residue
R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: 1,4-N-acetyl-D-glucosaminyl-Asn
R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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-
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?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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substrate specificity
R: 1,4-N-acetyl-D-glucosaminyl-Asn, transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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pyridylaminated oligosaccharide
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?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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essential for activity: unsubstituted equatorial hydroxyl on C-4 of beta-linked mannosyl-residue
R: 1,4-N-acetyl-D-glucosaminyl-Asn, transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: pyridinylamine
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?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: 1,4-N-acetyl-D-glucosaminyl-Asn
R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: 1,4-N-acetyl-D-glucosaminyl-Asn
R: 1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: 1,4-N-acetyl-D-glucosaminyl-Asn
transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: 1,4-N-acetyl-D-glucosaminyl-Asn
R: 1,4-N-acetyl-D-glucosaminyl-1,4-N-acetyl-D-glucosaminyl-Asn
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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an axial 2-hydroxyl group on the beta-linked mannose of the substrate are essential for the enzyme
R: 1,4-N-acetyl-D-glucosaminyl-Asn, transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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substrate specificity
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?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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substrate specificity
transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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R: H
R: H
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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absolute specificity for terminal branched mannosyl residues
transfers an N-acetylglucosamine in beta-1,2-linkage to mannosyl-1,3-beta-mannosyl-terminus
?
UDP-N-acetyl-D-glucosamine + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
UDP + alpha-D-mannosyl-1,6-(alpha-D-mannosyl-1,3)-alpha-D-mannosyl-1,6-(N-acetyl-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-beta-D-mannosyl-1,4-N-acetyl-D-glucosaminyl-R
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?