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3.2.1.133: glucan 1,4-alpha-maltohydrolase

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

Word Map on EC 3.2.1.133

Reaction

(Glcalpha(1-4))n
+
H2O
=
(Glcalpha(1-4))n-2
 +
alpha-maltose

Synonyms

alpha-amylase, AmyB, BbmA, BSMA, BSTA, BTMA, CAZy-GH13, glucan 1,4-alpha-maltohydrolase, glucan-1,4-alpha-maltohydrolase, Gt-MamyIII, LGMA, MAase, MABS, MAG1, maltogenase L, maltogenic alpha-amylase, maltogenic amylase, maltose-forming alpha-amylase, MAmy, MAUS149, More, NM319, NM326, NM398, NM404, NM447, Novamyl, PSMA, Smar_0613, SMMA, TCMA, Thermus maltogenic amylase, ThMA, TK4MA

ECTree

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

pH Range

pH Range on EC 3.2.1.133 - glucan 1,4-alpha-maltohydrolase

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pH RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
3.5 - 7
-
about 65% of activity maximum at pH 3.5, about 35% of activity maximum at pH 7.3
4 - 6
4 - 6.5
pH 4.0: about 65% of maximal activity, pH 6.5: about 60% of maximal activity, hydrolysis of maltotriose, wild-type enzyme
4 - 8
5 - 6.5
-
more than 50% of the maximum activity is retained in the range between pH 5.0 and pH 6.5
5 - 9
5 - 9.5
more than 80% of enzyme activity retained at pH ranges from 5 to 7, recombinant maltogenic amylase stable at pH ranging from 5 to 9.5 and mainly between 6 and 8
6 - 8
-
pH 6.0: about 80% of maximal activity, pH 8.0: about 30% of maximal activity
6 - 9
activity range, profile, overview