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3.2.1.3: glucan 1,4-alpha-glucosidase

This is an abbreviated version!
For detailed information about glucan 1,4-alpha-glucosidase, go to the full flat file.

Word Map on EC 3.2.1.3

Reaction

(alpha-D-glucopyranosyl-(1-4))n-alpha-D-glucopyranose
+
H2O
=
(alpha-D-glucopyranosyl-(1-4))n-1-alpha-D-glucopyranose
 +
beta-D-glucopyranose

Synonyms

1,4-alpha-D-glucan glucohydrolase, 1,4-alpha-D-glucan-glucohydrolase, acid maltase, alpha-(1,4)-D-glucan glucohydrolase, alpha-1,4-D-glucan glucohydrolase, alpha-1,4-glucan glucohydrolase, AMG, AmyA, AmyC, AmyD, amyloglucosidase, AnGA, APGA1, AtriGA15A, exo-1,4-alpha-D-glucan glucanohydrolase, exo-1,4-alpha-D-glucanohydrolase, exo-1,4-alpha-glucosidase, exo-amylase, GA, GA A, GA1, GA2, GAI, GAII, GAM, GAM-1, GAM-2, gamma-amylase, GAMP, GHF15 glucoamylase, GLA, Gla1, GlaA, GLL1, Glu-1.1, Glu-A, Glu1, GlucaM, Glucan 1,4-alpha-glucosidase, glucoamylase, glucoamylase 1, glucoamylase 2, glucoamylase C, glucoamylase D, glucoamylase G1, glucoamylase GA15A, glucoamylase P, glucose amylase, GluR, glycoamylase, HjGA, HrGA, lysosomal alpha-glucosidase, maltase glucoamylase, maltase-glucoamylase, maltooligosaccharide-metabolizing enzyme, Meiotic expression upregulated protein 17, MGA, MGAM, More, PDE_05527, PoGA, PoGA15A, PoxGA15A, raw starch-degrading enzyme, raw starch-degrading glucoamylase, RSDE, RSDG, SBD, Sga1, SSG, Sta1, Sta1p, starch-digesting glucoamylase, TagA, tGA, TmGLA, TmGlu1, TtcGA

ECTree

     3 Hydrolases
         3.2 Glycosylases
             3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
                3.2.1.3 glucan 1,4-alpha-glucosidase

pH Range

pH Range on EC 3.2.1.3 - glucan 1,4-alpha-glucosidase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
0 - 4
extracellular enzyme
1 - 5
1.5 - 6.5
-
pH 1.5: about 70% of maximal activity with starch as substrate, about 60% of the activity with maltose as substrate, pH 6.5: about 15% of maximal activity with maltose as substrate, about 55% of maximal activity with starch as substrate
2 - 13
-
over 20% of maximal activity within this range, profile overview
2 - 6.5
activity range, profile overview
2 - 7
2 - 8
2 - 9
2.3 - 6.5
-
pH 2.3: about 20% of maximal maltase activity, about 50% of glucoamylase activity, pH 6.5: about 25% of maltase activity, about 35% of glucoamylase activity
2.5 - 8
-
pH 2.5: about 35% of maximal activity, immobilized enzyme, pH 2.5: about 55% of maximal activity, free enzyme, pH 8.0: about 25% of maximal activity, free enzyme, pH 8.0: about 50% of maximal activity, immobilized enzyme
2.5 - 8.5
-
soluble glucoamylase, approx. 70% of maximal activity at pH 2.5, approx. 50% of maximal activity at pH 8.5, crosslinked glucoamylase crystals, approx. 20% of maximal activity at pH 2.5, approx. 25% of maximal activity at pH 8.5
2.5 - 9
Thermochaetoides thermophila
-
30% of maximal activity at pH 3.0 and pH 8.5, 50% of maximal activity at pH 3.5 and pH 7.0
3 - 10
3 - 11
-
pH profile of free and immobilized enzyme, overview
3 - 6
3 - 7
3 - 8
3 - 9
3.5 - 10
3.5 - 10.5
85% of maximal activity at pH 4.0-10.0, and 70% of maximal activity at pH 3.5 and 75% at pH 10.5, respectively
3.5 - 5.9
-
-
3.5 - 6
-
pH 3.5: about 50% of maximal activity, pH 6.0: about 35% of maximal activity
3.5 - 8
3.5 - 8.3
-
activity range, purified recombinant enzyme
3.9 - 9
-
over 80% at pH 3.9 and pH 9.0
4
Thermochaetoides thermophila
-
-
4 - 10
-
approx. 15% of maximal activity at pH 4.0, approx. 85% of maximal activity at pH 10.0
4 - 6.5
-
over 50% of maximal activity within this range, profile overview
4 - 7
4 - 7.1
-
-
4 - 7.5
-
activity range, 75% of maximal activity at pH 4.8 and 6.8, profile overview
4 - 8
4.5 - 5
4.5 - 6
-
pH 4.5: about 40% of maximal activity, pH 6.0: about 75% of maximal activity
4.5 - 6.5
additional information
-
pH profile