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3.2.1.131: xylan alpha-1,2-glucuronosidase

This is an abbreviated version!
For detailed information about xylan alpha-1,2-glucuronosidase, go to the full flat file.

Word Map on EC 3.2.1.131

Reaction

(4O-Me)GlcAalpha(1-2)[(Xylbeta(1-3))n](Xylbeta(1-3)m)
+
H2O
=
Xylbeta(1-3)m+n
 +
4-O-methyl-alpha-D-glucuronic acid

Synonyms

Agu1, Agu115, Agu115A, Agu67A, AguA, alpha-(1->2)-glucuronidase, alpha-glucuronidase, AugA, AxyAgu115A, BtGH115A, DEG75-AG, GH115, GH115 4-O-methyl-alpha-glucuronidase, GH115 alpha-glucuronidase, GH67, GlcA115A, glucuronidase, 1,2-alpha-, ScAGU115, Sde_1755, Theth_0154, xylanolytic alpha-glucuronidase

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.131 xylan alpha-1,2-glucuronosidase

pH Range

pH Range on EC 3.2.1.131 - xylan alpha-1,2-glucuronosidase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
4 - 5.5
at pH 4.0 and pH 5.5 the activities represent 25.5% and 51.6% of the activity at the optimum pH, respectively
4.5 - 7.5
-
at pH 4.5 and 7.5 retains 40% of enzyme activity
5 - 10.5
relative activity between pH 5.0 and pH 8.5 was above 80%, and was 35% of maximum at pH 10.5, activity on beechwood xylan
5 - 8
-
more than 50% activity between pH 5.0 and 8.0
5 - 8.5
the enzyme retains over 80% relative activity between pH 5.0 to 8.5
6 - 9
there is a dramatic decrease in enzyme activity at pH 6.0 and pH 9.0, and there is little activity at pH 4.0 and pH 5.0