Enzyme - EC 3.2.1.41 - Pullulanase
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EC
3.2.1.41
Official Name
Pullulanase
Alternative Name(s)
a-dextrin endo-1,6-alpha-glucosidase
Pullulan 6-glucanohydrolase
Limit dextrinase
Debranching enzyme
Amylopectin 6-glucanohydrolase
Pullulan 6-glucanohydrolase
Limit dextrinase
Debranching enzyme
Amylopectin 6-glucanohydrolase
Class
3.Hydrolases
2.Glycosidases
1.Hydrolysing O-glycosyl compounds
2.Glycosidases
1.Hydrolysing O-glycosyl compounds
Catalysed reaction
Hydrolysis of 1,6-a-D-glucosidic linkages in pullulan,
amylopectin and glycogen, and in the alpha- and b-amylase
limit dextrins of amylopectin and glycogen.
amylopectin and glycogen, and in the alpha- and b-amylase
limit dextrins of amylopectin and glycogen.
Substrates
Pullulan
Amylopectin
Glycogen
H2O
Limit dextrin
Amylopectin
Glycogen
H2O
Limit dextrin
Products
a-D-Glucose
Dextrin
Dextrin
Metabolic Pathways
Other comments
Different from EC 3.2.1.142 (limit dextrinase) in its action on glycogen, and its rate of hydrolysis of limit dextrins. Its action on amylopectin is complete. Maltose is the smallest sugar that it can release from an a- (1->6)-linkage.