3.2.1.114: mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase
This is an abbreviated version!
For detailed information about mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase, go to the full flat file.
Word Map on EC 3.2.1.114
-
3.2.1.114
-
swainsonine
-
n-linked
-
n-glycans
-
brefeldin
-
castanospermine
-
endoglycosidase
-
asparagine-linked
-
high-mannose
-
hybrid-type
-
complex-type
-
alpha-mannosidases
-
locoweed
-
indolizidine
-
1-deoxymannojirimycin
-
locoism
-
kifunensine
-
giantin
-
medicine
-
swainsonine-treated
-
man5glcnac
-
intra-golgi
-
1-deoxynojirimycin
-
oxytropis
-
high-mannose-type
-
beta-cop
-
mannostatins
-
glcnacman5glcnac2
-
biotechnology
-
drug development
-
pharmacology
- 3.2.1.114
- swainsonine
-
n-linked
- n-glycans
- brefeldin
- castanospermine
-
endoglycosidase
-
asparagine-linked
-
high-mannose
-
hybrid-type
-
complex-type
- alpha-mannosidases
-
locoweed
-
indolizidine
- 1-deoxymannojirimycin
-
locoism
- kifunensine
- giantin
- medicine
-
swainsonine-treated
- man5glcnac
-
intra-golgi
- 1-deoxynojirimycin
- oxytropis
-
high-mannose-type
- beta-cop
- mannostatins
- glcnacman5glcnac2
- biotechnology
- drug development
- pharmacology
Reaction
Synonyms
1,3(1,6)-alpha-D-mannosidase, 1,6-alpha-D-mannosidase, Afams1, alpha-1,3 mannosidase, alpha-1,3-mannosidase, alpha-D-mannosidase II, alpha-mannosidase, alpha-mannosidase II, alpha-mannosidase III, alpha-mannosidase IIx, alpha-MII, alpha1-3,6-mannosidase, Bt3991, class II alpha-D-mannosidase, class II alpha-mannosidase, class IIC alpha-mannosidase, dGMII, Drosophila GMII, exo-1,3-1,6-alpha-mannosidase, GH38 alpha-mannosidase II, GH38 enzyme, GH38 Golgi alpha-mannosidase II, GlcNAc transferase I-dependent alpha1,3[alpha1,6]mannosidase, glycoside hydrolase, GmII, Golgi alpha-mannosidase II, Golgi mannosidase IIx, human type II alpha-mannosidase, jack bean alpha-mannosidase, Man II, MAN IIx, MAN2A1, ManII, ManIII, mannose-trimming enzyme, mannosidase II, mannosidase, exo-1,3-1,6-alpha-, mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase, mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase II, MII, More, NAM, neutral alpha-mannosidase, SpGH38, TM1851
ECTree
3.2.1.114 mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidaseAdvanced search results
results (
results (Substrates Products
Substrates Products on EC 3.2.1.114 - mannosyl-oligosaccharide 1,3-1,6-alpha-mannosidase
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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
(Man)9GlcNAc + H2O
(Man)5GlcNAc + D-mannose
-
hydrolysis to (Man)5GlcNAc in the presence of Fe2+, Co2+, and Mn2+. Without activating cations the main reaction product is (Man)8GlcNAc
-
-
?
2,4-dinitrophenyl alpha-D-mannopyranoside + H2O
2,4-dinitrophenol + alpha-D-mannopyranose
-
-
-
?
2,4-dinitrophenyl-alpha-D-mannopyranoside + H2O
2,4-dinitrophenol + D-mannose
-
-
-
?
2,5-dinitrophenyl-alpha-D-mannopyranoside + H2O
2,5-dinitrophenol + alpha-D-mannose
pH 5.6, room temperature
-
-
?
2,5-dinitrophenyl-alpha-D-mannopyranoside + H2O
2,5-dinitrophenol + D-mannose
-
-
-
?
2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->2)-alpha-D-mannopyranosyl-(1->3)-[alpha-D-mannopyranosyl-(1->3)-alpha-D-mannopyranosyl-(1->6)]-beta-D-mannopyranosyl-(1->4)-2-(acetylamino)-2-deoxy-alpha-D-glucopyranose + H2O
2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->2)-alpha-D-mannopyranosyl-(1->3)-[alpha-D-mannopyranosyl-(1->6)]-beta-D-mannopyranosyl-(1->4)-2-(acetylamino)-2-deoxy-alpha-D-glucopyranose + D-mannose
-
-
-
ir
2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->2)-alpha-D-mannopyranosyl-(1->3)-[alpha-D-mannopyranosyl-(1->3)-[alpha-D-mannopyranosyl-(1->6)]-alpha-D-mannopyranosyl-(1->6)]-beta-D-mannopyranosyl-(1->4)-2-(acetylamino)-2-deoxy-alpha-D-glucopyranose + H2O
2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->2)-alpha-D-mannopyranosyl-(1->3)-[alpha-D-mannopyranosyl-(1->3)-alpha-D-mannopyranosyl-(1->6)]-beta-D-mannopyranosyl-(1->4)-2-(acetylamino)-2-deoxy-alpha-D-glucopyranose + D-mannose
-
-
-
ir
2-deoxy-2-fluoro-alpha-D-mannosyl fluoride
?
wild-type and D341N mutant GMII, acts as very slow substrate of the mutant enzyme with a rate-limiting deglycosylation step
-
-
?
3-O-alpha-D-mannopyranosyl-alpha-D-mannopyranose + H2O
2 alpha-D-mannopyranose
-
Bt3991 displays particularly high activity against alpha-1,3-mannobiose
-
-
?
4-methyl-umbelliferyl-alpha-D-mannopyranoside + H2O
4-methyl-umbelliferone + alpha-D-mannopyranose
-
30 min, 37°C
-
-
?
4-methylumbelliferyl alpha-D-mannopyranoside + H2O
4-methylumbelliferol + alpha-D-mannopyranose
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannopyranoside + H2O
4-nitrophenol + D-mannopyranose
-
-
-
?
4-nitrophenyl-alpha-D-mannopyranoside + H2O
4-nitrophenol + alpha-D-mannopyranose
-
30 min, 37°C
-
-
?
4-nitrophenyl-alpha-D-mannopyranoside + H2O
4-nitrophenol + alpha-D-mannose
30 min, 20°C
-
-
?
4-nitrophenyl-alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
5-fluoro-beta-L-gulosyl fluoride + H2O
?
acts as slow substrate with a rate-limiting deglycosylation step, wild-type and D341N mutant GMII
-
-
?
D-Manalpha(1-2)Manalpha(1-3)Manbeta(1-4)GlcNAc + H2O
?
-
NaBH4 reduced, poor substrate
-
-
?
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-Asn + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-Asn + alpha-D-mannose
-
i.e. glycopeptide III, derived from ovalbumin, no hydrolysis of the innermost alpha-1,6-linked or the alpha-1,2-linked mannose
i.e. glycopeptide II
?
D-Manalpha(1-6)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
NaBH4 reduced, at lower rate than Manalpha(1-3)Manbeta(1-4)GlcNAc hydrolysis
NaBH4 reduced
?
GlcNAcbeta(1-2)Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
?
-
NaBH4 reduced, hydrolysis at equal rate as Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc, galactosyl and sialyl-galactosyl derivatives are substrates, too
-
-
?
GlcNAcbeta(1-6)(GlcNAcbeta(1-2))Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
?
-
NaBH4 reduced, rate at 50% of Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc hydrolysis
-
-
?
high mannose chains of thyroglobulin and phytohemagglutinin-P + H2O
? + D-mannose
-
thyroglobulin: 70% of alpha1,2-mannose residues accessible
-
-
?
Manalpha(1-3)Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + H2O
Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + alpha-D-mannose
-
-
-
-
?
Manalpha(1-3)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + H2O
Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + alpha-D-mannose
-
-
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))(Xylbeta(1-4))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + H2O
Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))(Xylbeta(1-4))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + alpha-D-mannose
-
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + H2O
Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + alpha-D-mannose
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + H2O
Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + alpha-D-mannose
-
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)(Manalpha(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
(Man)4(GlcNAc)2 + (Man)3(GlcNAc)2 + D-mannose
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
Manalpha(1-6)(Manalpha(1-3))D-Manalpha(1-6)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
NaBH4 reduced
NaBH4 reduced
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + H2O
Manalpha(1-3)Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + alpha-D-mannose
-
-
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
Manalpha(1-6)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + H2O
Manalpha(1-3)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-pyridylaminoside + alpha-D-mannose
-
-
-
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-Asn + H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-Asn + alpha-D-mannose
-
processing of asparagine-linked oligosaccharides by alpha-D-mannosidase dependent on the prior action of UDP-GlcNAc:alpha-D-mannoside beta2-N-acetylglucosaminyltransferase I, removes 2 mannosyl residues, via GlcNAc(Man)4(GlcNAc)2Asn
-
?
methyl-2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside + H2O
? + D-mannose
-
-
-
-
?
p-nitrophenyl-alpha-D-mannopyranoside + H2O
p-nitrophenol + alpha-D-mannopyranose
-
-
-
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
2,4-dinitrophenyl alpha-D-mannoside + H2O
2,4-dinitrophenol + alpha-D-mannose
-
-
?
2,4-dinitrophenyl alpha-D-mannoside + H2O
2,4-dinitrophenol + alpha-D-mannose
-
-
-
-
?
3-O-alpha-D-mannopyranosyl-alpha-D-mannopyranose + H2O
alpha-D-mannopyranose
-
-
-
-
?
3-O-alpha-D-mannopyranosyl-alpha-D-mannopyranose + H2O
alpha-D-mannopyranose
the enzyme is only active with the alpha-1,3-linked disaccharide
-
-
?
4-methylumbelliferyl alpha-D-mannopyranoside + H2O
4-methylumbelliferol + alpha-D-mannopyranose
-
-
-
-
?
4-methylumbelliferyl alpha-D-mannopyranoside + H2O
4-methylumbelliferol + alpha-D-mannopyranose
-
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
-
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
catalytic domain of alpha-mannosidase IIx
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
-
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
-
-
-
?
4-methylumbelliferyl alpha-D-mannoside + H2O
4-methylumbelliferone + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannopyranoside + H2O
4-nitrophenol + alpha-D-mannopyranose
-
-
-
-
?
4-nitrophenyl alpha-D-mannopyranoside + H2O
4-nitrophenol + alpha-D-mannopyranose
-
-
-
-
?
4-nitrophenyl alpha-D-mannopyranoside + H2O
4-nitrophenol + alpha-D-mannopyranose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
alpha-mannosidase IIx
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
rat
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
rate at 23.5% of GlcNAc(Man)5GlcNAc hydrolysis
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
alpha-mannosidase III
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
?
4-nitrophenyl alpha-D-mannoside + H2O
4-nitrophenol + alpha-D-mannose
-
-
-
-
?
D-Manalpha(1-3)Manbeta(1-4)GlcNAc + H2O
D-Manbeta(1-4)GlcNAc + alpha-D-mannose
-
NaBH4 reduced, good substrate
-
-
?
D-Manalpha(1-3)Manbeta(1-4)GlcNAc + H2O
D-Manbeta(1-4)GlcNAc + alpha-D-mannose
-
NaBH4 reduced, good substrate
NaBH4 reduced
?
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
alpha-mannosidase II
-
?
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
-
-
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
-
-
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
-
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
preferred substrate
-
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
removes the exposed alpha-1,3- and alpha-1,6-mannosyl residues
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
natural substrate, involved in the processing of N-linked oligosaccharides
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
-
-
-
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
strict substrate specificity
final product, via GlcNAc(Man)4GlcNAc
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
excellent substrate, removes the alpha-1,3- and alpha-1,6-mannosyl residues with preference for the alpha-1,6-linkage
final product, via GlcNAc(Man)4GlcNAc, product structure: GlcNAcManalpha(1-3)(Manalpha(1-6))ManbetaGlcNAc
?
GlcNAc(Man)5GlcNAc + 2 H2O
GlcNAc(Man)3GlcNAc + 2 alpha-D-mannose
-
natural substrate, involved in the processing of N-linked oligosaccharides
-
-
?
GlcNAc(Man)5GlcNAc2 + H2O
GlcNAc(Man)3GlcNAc2 + D-mannose
-
alpha-mannosidase IIx protein
-
-
?
Man5GlcNAc2 + H2O
Man3GlcNAc2 + 2 alpha-D-mannopyranose
-
the alpha-1,3-mannosidase Bt3991, while unable to hydrolyze Man9GlcNAc2, converts Man5GlcNAc2 into Man3GlcNAc2 hydrolyzing the distal alpha-1,6-mannosidic linkage in high-mannose N-glycans. The alpha-1,3-mannosidic linkages in N-glycans are available to the enzyme once the terminal alpha-1,2-linked mannosyl residues are removed
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + H2O
Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + alpha-D-mannose
physiological substrate, conversion by sequential removal of two alpha1,6-linked and alpha1,3-linked mannose residues from the alpha-1,6-branch of the substrate
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + H2O
Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-1-Asn + alpha-D-mannose
conversion by sequential removal of two alpha1,6-linked and alpha1,3-linked mannose residues from the alpha-1,6-branch of the substrate
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)(Manalpha(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
recombinant alpha-mannosidase IIx, expressed in CHO cells, hydrolyzes 2 peripheral Manapha(1-6) and Manalpha(1-3) residues
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)(Manalpha(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
alpha-mannosidase IIx, M6Gn2 is the primary target in vivo, integral part of N-glycan biosynthesis
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
(Man)4(GlcNAc)2 + (Man)3(GlcNAc)2 + D-mannose
-
i.e. Manalpha(1-2)Manalpha(1-2)Manalpha(1-3) (Manalpha(1-6))ManbetaGlcNAc-betaGlcNAc
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
(Man)4(GlcNAc)2 + (Man)3(GlcNAc)2 + D-mannose
-
i.e. Manalpha(1-2)Manalpha(1-2)Manalpha(1-3) (Manalpha(1-6))ManbetaGlcNAc-betaGlcNAc
-
?
Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
Manalpha(1-6)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
-
?
Manalpha(1-6)(Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
Manalpha(1-6)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
NaBH4 reduced, cleaves the Manalpha(1-6)Man linkage only after its Manalpha(1-3) residue is removed
NaBH4 reduced, no product: Manalpha(1-3)Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
N-glycosylation pathway
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
alpha-mannosidase II
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
alpha-mannosidase II, biosynthesis of N-glycans
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
acts after GlcNAc transferase I to remove the alpha-1,3- and alpha-1,6-linked mannose residue
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
non-reduced and NaBH4 reduced substrate, removes the alpha-1,3- and alpha-1,6-mannosyl residues with preference for the alpha-1,6-linked mannose residue on the alpha-1,6-linked mannose arm, via GlcNAc(Man)4(GlcNAc)2
-
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
involved in N-glycan maturation, acts after GlcNAc transferase I to remove 2 mannose residues to form GlcNAc(Man)3(GlcNAc)2 prior to extension into complex N-glycans
-
?
Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 H2O
Manalpha(1-6)[GlcNAcbeta(1-2)Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + 2 alpha-D-mannose
-
-
-
?
pyridylaminated (Man)5(GlcNAc)2 + H2O
pyridylaminated (Man)3(GlcNAc)2 + alpha-D-mannose
-
via a (Man)4(GlcNAc)2 intermediate
-
?
pyridylaminated (Man)5(GlcNAc)2 + H2O
pyridylaminated (Man)3(GlcNAc)2 + alpha-D-mannose
-
alpha-mannosidase III
-
?
pyridylaminated (Man)5(GlcNAc)2 + H2O
pyridylaminated (Man)3(GlcNAc)2 + alpha-D-mannose
-
alpha-mannosidase III
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
via the intermediate product GlcNAc(Man)4(GlcNAc)2, the alpha-1,6-linked mannosyl residue is removed first, then the 1,3-linked
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
dependent on the prior action of N-acetylglucosaminyl transferase I on (Man)5(GlcNAc)2
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
via the intermediate product GlcNAc(Man)4(GlcNAc)2, the alpha-1,6-linked mannosyl residue is removed first, then the 1,3-linked
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
dependent on the prior action of N-acetylglucosaminyl transferase I on (Man)5(GlcNAc)2
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
-
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
via the intermediate product GlcNAc(Man)4(GlcNAc)2, the alpha-1,6-linked mannosyl residue is removed first, then the 1,3-linked
-
?
pyridylaminated D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O
pyridylaminated D-Manalpha(1-6)(GlcNAcbeta(1-2)Manalpha(1-3))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + alpha-D-mannose
-
via the intermediate product GlcNAc(Man)4(GlcNAc)2, the alpha-1,6-linked mannosyl residue is removed first, then the 1,3-linked
-
?
additional information
?
-
Golgi alpha-mannosidase II is a key enzyme in the formation of complex N-glycans in plants
-
-
?
additional information
?
-
-
Golgi alpha-mannosidase II is a key enzyme in the formation of complex N-glycans in plants
-
-
?
additional information
?
-
-
not: D-Manalpha(1-6)(Manalpha(1-3))Manalpha(1-6)(GlcNAcbeta(1-4))[GlcNAcbeta(1-4)(GlcNAcbeta(1-2))Manalpha(1-3)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc, GlcNAcbeta(1-2)Manalpha(1-3)(Manalpha(1-6))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc, GlcNAcbeta(1-4)Manalpha(1-3)(Manalpha(1-6))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc, all sodium borate reduced
-
-
?
additional information
?
-
-
not: Manalpha(1-6)(R-Manalpha(1-3))Manbeta(1-4)GlcNAc
-
-
?
additional information
?
-
-
substrate specificity, hydrolysis mechanism of branched oligosaccharides
-
-
?
additional information
?
-
-
asparagine-linked glycoprotein biosynthesis
-
-
?
additional information
?
-
enzyme/active site structure and substrate binding, catalytic mechanism
-
-
?
additional information
?
-
asparagine-linked glycoprotein biosynthesis
-
-
?
additional information
?
-
-
about 80-fold preference of isoform GMII for the cleavage of substrates containing a nonreducing beta-(1,2)-linked GlcNAc group
-
-
?
additional information
?
-
about 80-fold preference of isoform GMII for the cleavage of substrates containing a nonreducing beta-(1,2)-linked GlcNAc group
-
-
?
additional information
?
-
GMII is involved in the creation of glycoproteins that contain complex carbohydrates. It is responsible for the formation of the core trimannose structure to which all complex carbohydrates are appended. It catalyses the hydrolysis of an alpha(1,6)- and an alpha(1,3)-linked mannose from GlcNAc-Man5-GlcNAc2 to form GlcNAc-Man3-GlcNAc2-Asn-X
-
-
?
additional information
?
-
the cleavage mechanism involves formation of a covalent glycosyl-enzyme intermediate and results in net retention of configuration
-
-
?
additional information
?
-
-
Co2+ regulates the substrate specificity, overview
-
-
?
additional information
?
-
-
in vitro hydrolysis of high-mannose type N-glycans, removal of terminal alpha-1,2-mannose residues, substrate specificity and isomeric substrate/product structures, overview
-
-
?
additional information
?
-
-
Man II catalyzes the final hydrolytic step in the N-glycan maturation pathway acting as the committed step in the conversion of high mannose to complex type structures
-
-
?
additional information
?
-
-
involved in trimming reactions in N-glycan maturation in the Golgi complex
-
-
?
additional information
?
-
-
co-expression of beta1,4-N-acetylglucosaminyltransferase III-ManIII and ManII, or of beta1,4-N-acetylglucosaminyltransferase III and ManII leads to the formation of bisected non-fucosylated glycans of the complex type
-
-
?
additional information
?
-
-
Bt1769, Bt3858 and Bt3991 are alpha-1,3-mannosidases that display particularly high activity against alpha-1,3-mannobiose
-
-
?
additional information
?
-
-
alpha-1,3-mannosidases, Bt3858 and Bt1769, convert Man4GlcNAc2 to Man3GlcNAc2, but do not attack Man5GlcNAc2, indicating that these enzymes cannot tolerate alpha-1,6-Man side chains
-
-
?
additional information
?
-
Man II catalyzes the final hydrolytic step in the N-glycan maturation pathway acting as the committed step in the conversion of high mannose to complex type structures
-
-
?
additional information
?
-
-
Man II catalyzes the final hydrolytic step in the N-glycan maturation pathway acting as the committed step in the conversion of high mannose to complex type structures
-
-
?
additional information
?
-
-
involved in trimming reactions in N-glycan maturation in the Golgi complex
-
-
?
additional information
?
-
-
MII and alpha-mannosidase IIx function in N-glycan processing in a similar manner
-
-
?
additional information
?
-
-
MII and alpha-mannosidase IIx function in N-glycan processing in a similar manner. Alpha-mannosidase IIx shows no reactivity to high-mannose-type carbohydrates
-
-
?
additional information
?
-
-
involved in asparagine-linked oligosaccharide processing
-
-
?
additional information
?
-
-
required in the maturation of asparagine-linked oligosaccharides in the Golgi complex
-
-
?
additional information
?
-
-
biosynthesis of complex-type N-linked oligosaccharides of glycoproteins
-
-
?
additional information
?
-
-
function in Golgi membranes: presumably glycopolymer metabolism
-
-
?
additional information
?
-
-
Man II catalyzes the final hydrolytic step in the N-glycan maturation pathway acting as the committed step in the conversion of high mannose to complex type structures
-
-
?
additional information
?
-
-
asparagine-linked glycoprotein biosynthesis
-
-
?
additional information
?
-
-
alpha-mannosidase III hydrolyzes (Man)5-9(GlcNAc)2, not: GlcNAc(Man)5(GlcNAc)2
-
-
?
additional information
?
-
-
alpha-mannosidase III hydrolyzes (Man)5-9(GlcNAc)2, not: GlcNAc(Man)5(GlcNAc)2
-
-
?
additional information
?
-
-
alpha-mannosidase III probably provides an alternate N-glycan processing pathway in Sf-9 cells
-
-
?
additional information
?
-
-
asparagine-linked glycoprotein biosynthesis
-
-
?
additional information
?
-
-
study of biosynthesis and processing of alpha-mannosidase III
-
-
?
additional information
?
-
higher eukaryotic GH38 alpha-mannosides play a key role in the modification and diversification of hybrid N-glycans, processes with strong cellular links to cancer and autoimmune disease
-
-
?
additional information
?
-
SpGH38 is an alpha-mannosidase with specificity for alpha-1,3 mannosidic linkages, active site structure, overview
-
-
?
additional information
?
-
-
the exo-type cytosolic class II enzyme cleaves off alpha-1,2-, alpha-1,3-, and alpha-1,6-mannose residues
-
-
?
additional information
?
-
-
no hydrolysis of alpha1,6-linkages
-
-
?
