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Information on EC 3.2.1.139 - alpha-glucuronidase
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3.2.1.139 alpha-glucuronidaseIUBMB Comments
Considerable differences in the specificities of the enzymes from different fungi for alpha-D-glucosiduronates have been reported. Activity is also found in the snail.
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Word Map
- 3.2.1.139
- glucuronoxylans
-
glucuronic
-
agua
- endoxylanase
- beta-xylosidase
- xylooligosaccharides
-
4-o-methyl-d-glucuronic
- xylanases
-
meglca
-
hardwood
-
birchwood
- hemicelluloses
-
schizophyllum
- arabinoxylans
-
aldouronic
- xylotriose
-
4-o-methylated
-
4-o-methylglucuronic
-
hemicellulolytic
-
methylglucuronic
- arabinofuranosidase
-
xylopyranosyl
-
cellvibrio
- analysis
- degradation
- synthesis
- molecular biology
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria, Archaea
Synonyms
alpha-glucuronidase, gh115, glca67a, alpha-d-glucuronidase, alpha-(4-o-methyl)-d-glucuronidase, deg75-ag, boagu115a, agu115, agu115a, rum630-ag, 
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SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
(4-O-methyl)-alpha-glucuronidase
-
-
-
-
4-O-methylglucuronidase
-
-
-
-
Agu115
Agu115A
Agu4B
AguA
alpha-(4-O-methyl)-D-glucuronidase
-
-
-
-
alpha-D-glucuronidase
-
-
-
-
Alpha-glucosiduronase
-
-
-
-
alpha-glucosiduronate glucuronohydrolase
alpha-glucuronidase
amylouronate hydrolase-I
Aryl alpha-glucuronidase
-
-
-
-
AugA
AUH-I
GH67
GH67 alpha-glucuronidase
GLRI
-
-
-
-
glucuronidase, alpha-
-
-
-
-
non-xylanolytic alpha-glucuronidase
p-nitrophenyl alpha-D-glucuronide-hydrolyzing enzyme
-
-
-
-
PNP-GAase
-
-
-
-
Sde_1755
alpha-glucuronidase
-
-
-
-
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REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
an alpha-D-glucuronoside + H2O = an alcohol + D-glucuronate
-
-
-
-
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hydrolysis
hydrolysis of O-glycosyl bond
-
-
-
-
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SYSTEMATIC NAME
IUBMB Comments
alpha-D-glucosiduronate glucuronohydrolase
Considerable differences in the specificities of the enzymes from different fungi for alpha-D-glucosiduronates have been reported. Activity is also found in the snail.
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CAS REGISTRY NUMBER
COMMENTARY
37259-81-7
-
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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
1,2-linked glucuronic acid of non-reducing xylose-oligosaccahrides + H2O
D-glucuronic acid + ?
2-O-alpha-(4-O-methyl-alpha-D-glucopyranosyluronic acid)-D-xylose + H2O
4-O-methylglucuronic acid + D-xylose
-
-
-
-
?
2-O-alpha-(4-O-methyl-alpha-D-glucopyranosyluronic)-D-xylobiose + H2O
4-O-methylglucuronic acid + D-xylobiose
-
i.e. aldotriouronic acid
-
-
?
2-O-alpha-(4-O-methyl-alpha-D-glucuronosyl)-xylotriose + H2O
4-O-methyl-alpha-D-glucuronic acid + xylotriose
2-O-alpha-D-glucopyranosyluronic acid-D-xylose + H2O
alpha-D-glucopyranosyluronic acid + D-xylose
-
-
-
-
?
4-nitrophenyl 2-(4-O-methyl-alpha-D-glucopyranosyl)-beta-D-xylopyranoside + H2O
4-nitrophenyl beta-D-xylopyranoside + 4-O-methyl-alpha-D-glucopyranose
4-nitrophenyl-2-O-(4-O-methyl-alpha-D-glucuronosyl)-beta-D-xylopyranoside + H2O
4-nitrophenyl-D-xylopyranoside + 4-O-methyl-alpha-D-glucuronate
-
-
-
-
?
4-O-Me-GlcAalpha(1-2)Xylbeta(1-4)Xylbeta(1-4)Xyl + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
from beechwood, de-estrification of the methyl ester of MeGlcA with glucuronoyl esterase
de-estrification of the methyl ester of MeGlcA with glucuronoyl esterase
-
?
4-O-Me-GlcAalpha(1-2)Xylbeta(1-4)Xylbeta(1-4)[4-O-Me-GlcAalpha(1-2)]Xylbeta(1-4)Xyl + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)[4-O-Me-GlcAalpha(1-2)]Xylbeta(1-4)Xyl
hydrolysis product of endoxylanases on glucuronoxylan
de-estrification of the methyl ester of MeGlcA with glucuronoyl esterase
-
?
4-O-methyl-alpha-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-(beta-D-xylopyranosyl-(1->4))n-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucopyranose + beta-D-xylopyranosyl-(1->4)-(beta-D-xylopyranosyl-(1->4))n-beta-D-xylopyranose
-
-
-
ir
4-O-methyl-alpha-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucopyranose + 4-O-beta-D-xylopyranosyl-beta-D-xylopyranose
4-O-methyl-alpha-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucopyranose + beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose
-
-
-
ir
4-O-methyl-alpha-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucopyranose + beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose
-
-
-
ir
4-O-methyl-alpha-D-glucopyranuronosyl-(1-2)-beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucuronic acid + beta-D-xylopyranose
-
-
-
-
?
4-O-methyl-alpha-D-glucopyranuronosyl-(1-2)-beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucuronic acid + beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranosyl-(1-4)-beta-D-xylopyranose
-
-
-
-
?
4-O-methyl-alpha-D-glucuronosyl-xyloheptaose + H2O
4-O-methyl-alpha-D-glucuronate + xyloheptaose
-
-
-
-
?
4-O-methyl-beta-D-glucopyranuetaronosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
?
4-O-methyl-D-glucuronoxylan + H2O
4-O-methyl-D-glucuronic acid + xylan
-
-
-
?
aldopentaouronic acid + H2O
4-O-methyl-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldopentaouronic acid + H2O
4-O-methylglucuronic acid + ?
-
high activity
-
-
?
aldopentauronic acid + H2O
4-O-methyl-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xyl
aldotetraouronic acid + H2O
4-O-methylglucuronic acid + ?
-
highest activity
-
-
?
aldotriouronic acid + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
beechwood xylan + H2O
4-O-methyl-D-glucuronic acid + D-glucuronic acid + ?
-
-
-
?
beechwood xylan + H2O
4-O-methylglucuronic acid + ?
-
low activity
-
-
?
beechwood xylan + H2O
4-O-methylglucuronoxylan + ?
-
-
-
?
birchwood xylan + H2O
4-O-methyl-D-glucuronic acid + D-glucuronic acid
-
-
-
?
birchwood xylan + H2O
4-O-methylglucuronic acid + ?
-
very low activity
-
-
?
birchwood xylan + H2O
4-O-methylglucuronoxylan + ?
-
-
-
?
GlcAalpha(1-2)Xylbeta(1-4)Xylbeta(1-4)[GlcAalpha(1-2)]Xylbeta(1-4)Xyl + H2O
alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)[GlcAalpha(1-2)]Xylbeta(1-4)Xyl
generated from the action of endoxylanases on polysaccharides
de-estrification of the methyl ester of MeGlcA with glucuronoyl esterase
-
?
O-alpha-D-glucopyranosyluronic acid-alpha-D-glucopyranosiduronic acid + H2O
alpha-D-glucopyranosyluronic acid + alpha-D-glucopyranosiduronic acid
-
-
-
-
?
O-alpha-D-glucosyluronic acid alpha-D-glucosiduronic acid
D-glucuronic acid
-
the immobilized enzyme completely hydrolyzes 100 mM of the substrate
-
-
?
O-alpha-D-glucosyluronic acid alpha-D-glucosiduronic acid + H2O
alpha-D-glucosiduronic acid + beta-D-glucosiduronic acid
-
-
alpha-D-glucosiduronic acid and beta-D-glucosiduronic acid are produced in an equimolar ratio
-
?
oat spelt xylan + H2O
4-O-methylglucuronic acid + ?
-
negligible activity
-
-
?
p-nitrophenyl alpha-D-glucuronide + H2O
p-nitrophenol + D-glucuronate
-
-
-
-
?
reduced aldopentaouronic acid + H2O
4-O-methyl-D-glucuronic acid + ?
-
-
-
-
?
spruce gluconoarabinoxylan + H2O
4-O-methyl-D-glucuronic acid + ?
-
-
-
-
?
1,2-linked glucuronic acid of non-reducing xylose-oligosaccahrides + H2O
D-glucuronic acid + ?
hemicellulose consists mostly of xylan, a polymer of beta-1,4-linked xylose residues, and has among others side chains of glucuronic acid, attached by 1,2-glycosidic bonds
-
-
?
1,2-linked glucuronic acid of non-reducing xylose-oligosaccahrides + H2O
D-glucuronic acid + ?
hemicellulose consists mostly of xylan, a polymer of beta-1,4-linked xylose residues, and has among others side chains of glucuronic acid, attached by 1,2-glycosidic bonds
-
-
?
2-O-alpha-(4-O-methyl-alpha-D-glucuronosyl)-xylotriose + H2O
4-O-methyl-alpha-D-glucuronic acid + xylotriose
-
i.e. aldotetraouronic acid
-
-
?
2-O-alpha-(4-O-methyl-alpha-D-glucuronosyl)-xylotriose + H2O
4-O-methyl-alpha-D-glucuronic acid + xylotriose
-
i.e. aldotetraouronic acid
-
-
?
4-nitrophenyl 2-(4-O-methyl-alpha-D-glucopyranosyl)-beta-D-xylopyranoside + H2O
4-nitrophenyl beta-D-xylopyranoside + 4-O-methyl-alpha-D-glucopyranose
-
-
-
-
?
4-nitrophenyl 2-(4-O-methyl-alpha-D-glucopyranosyl)-beta-D-xylopyranoside + H2O
4-nitrophenyl beta-D-xylopyranoside + 4-O-methyl-alpha-D-glucopyranose
-
-
-
-
?
4-nitrophenyl 2-(4-O-methyl-alpha-D-glucopyranosyl)-beta-D-xylopyranoside + H2O
4-nitrophenyl beta-D-xylopyranoside + 4-O-methyl-alpha-D-glucopyranose
-
-
-
-
?
4-nitrophenyl 2-(4-O-methyl-alpha-D-glucopyranosyl)-beta-D-xylopyranoside + H2O
4-nitrophenyl beta-D-xylopyranoside + 4-O-methyl-alpha-D-glucopyranose
-
-
-
-
?
4-O-methyl-alpha-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucopyranose + 4-O-beta-D-xylopyranosyl-beta-D-xylopyranose
-
-
-
ir
4-O-methyl-alpha-D-glucopyranosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
4-O-methyl-alpha-D-glucopyranose + 4-O-beta-D-xylopyranosyl-beta-D-xylopyranose
-
-
-
ir
4-O-methyl-beta-D-glucopyranuetaronosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
?
-
-
-
?
4-O-methyl-beta-D-glucopyranuetaronosyl-(1->2)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose + H2O
?
-
-
-
?
4-O-methyl-D-glucuronosyl-xylitol + H2O
4-O-methyl-D-glucuronate + xylitol
-
-
-
-
?
4-O-methyl-D-glucuronosyl-xylitol + H2O
4-O-methyl-D-glucuronate + xylitol
-
-
-
-
?
4-O-methyl-D-glucuronosyl-xylitol + H2O
4-O-methyl-D-glucuronate + xylitol
-
-
-
-
?
4-O-methyl-D-glucuronosyl-xylitol + H2O
4-O-methyl-D-glucuronate + xylitol
Polyporus versicolor
-
-
-
-
?
4-O-methyl-D-glucuronosyl-xylitol + H2O
4-O-methyl-D-glucuronate + xylitol
-
-
-
-
?
4-O-methyl-D-glucuronosyl-xylitol + H2O
4-O-methyl-D-glucuronate + xylitol
Tyromyces palustris
-
-
-
-
?
4-O-methyl-D-glucuronosylxylan + H2O
4-O-methyl-D-glucuronate + xylan
-
-
-
-
?
4-O-methyl-D-glucuronosylxylan + H2O
4-O-methyl-D-glucuronate + xylan
-
-
-
-
?
4-O-methyl-D-glucuronosylxylan + H2O
4-O-methyl-D-glucuronate + xylan
-
at 52% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
Thermotoga maritima MSB8 / DSM 3109 / ATCC 43589
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylobiose + H2O
4-O-methyl-glucuronate + xylobiose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylohexaose + H2O
4-O-methyl-glucuronate + xylohexaose
-
at 53% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylohexaose + H2O
4-O-methyl-glucuronate + xylohexaose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylopentaose + H2O
4-O-methyl-glucuronate + xylopentaose
-
at 50% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylopentaose + H2O
4-O-methyl-glucuronate + xylopentaose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
no activity
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
no activity
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
96% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylose + H2O
4-O-methyl-glucuronate + xylose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
at 96% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
at 96% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotetraose + H2O
4-O-methyl-glucuronate + xylotetraose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
at 99% of the activity with 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
at 96% of the activity 4-O-methyl-glucuronosyl-xylobiose
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
4-O-methyl-glucuronosyl-xylotriose + H2O
4-O-methyl-glucuronate + xylotriose
-
-
-
-
?
aldopentauronic acid + H2O
4-O-methyl-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldopentauronic acid + H2O
4-O-methyl-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldopentauronic acid + H2O
4-O-methyl-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldopentauronic acid + H2O
4-O-methyl-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xylbeta(1-4)Xyl
i.e. 2''-O-alpha-(4-O-methyl-alpha-D-glucuronosyl)-xylotetraose
-
-
?
aldotriouronic acid + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldotriouronic acid + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
?
aldotriouronic acid + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldotriouronic acid + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldotriouronic acid + H2O
4-O-methyl-alpha-D-glucuronic acid + Xylbeta(1-4)Xylbeta(1-4)Xyl
-
-
-
-
?
aldouronic acid + H2O
D-xylose + 4-O-methyl-D-glucuronic acid
mixtures of aldobiouronic, aldottriouronic, aldotetraouronic, and aldopentaouronic acid, glucuronic acid groups attached via 1,2-linkage to xylose or non-reducing terminal residue of xylose-oligosaccharides
direct product of aldobiouronic acid
-
?
aldouronic acid + H2O
D-xylose + 4-O-methyl-D-glucuronic acid
mixtures of aldobiouronic, aldottriouronic, aldotetraouronic, and aldopentaouronic acid, glucuronic acid groups attached via 1,2-linkage to xylose or non-reducing terminal residue of xylose-oligosaccharides
direct product of aldobiouronic acid
-
?
amylouronate + H2O
D-glucuronate + ?
-
AUH-I is highly specific to amylouronate, amylouronate is alpha-(1,4)-linked polyglucuronic acid sodium salt or alpha-(1,4)-linked glucuronan, AUH-I hydrolyses amylouronate exolytically
-
-
?
amylouronate + H2O
D-glucuronate + ?
-
AUH-I is highly specific to amylouronate, amylouronate is alpha-(1,4)-linked polyglucuronic acid sodium salt or alpha-(1,4)-linked glucuronan, AUH-I hydrolyses amylouronate exolytically
-
-
?
beta-D-glucuronyl alpha-D-glucuronic acid + H2O
D-glucuronate + alpha-D-glucuronic acid
-
-
-
-
?
beta-D-glucuronyl alpha-D-glucuronic acid + H2O
D-glucuronate + alpha-D-glucuronic acid
-
-
-
-
?
birchwood xylan + H2O
4-O-methyl-D-glucuronic acid + D-glucuronic acid + ?
-
-