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MetaCyc Reaction: 3.2.1.1

Superclasses: Reactions Classified By Conversion Type Simple Reactions Chemical Reactions
Reactions Classified By Substrate Small-Molecule Reactions

EC Number: 3.2.1.1

Enzymes and Genes:

Hordeum vulgare : α-amylase Inferred from experiment : AMY1
α-amylase Inferred from experiment : AMY2

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.

Mass balance status: Balance undetermined; a substrate has a non-numerical coefficient

Enzyme Commission Primary Name: α-amylase

Enzyme Commission Synonyms: glycogenase, α amylase, α-amylase, endoamylase, Taka-amylase A, 1,4-α-D-glucan glucanohydrolase

Taxonomic Range: Archaea , Bacteria , Fungi , Viridiplantae , Metazoa

Enzyme Commission Summary:
The enzyme catalyzes the endohydrolysis of (1→4)-α-D-glucosidic linkages in polysaccharides containing three or more (1→4)-α-linked D-glucose units.

Acts on starch, glycogen and related polysaccharides and oligosaccharides in a random manner; reducing groups are liberated in the α-configuration. The term "α" relates to the initial anomeric configuration of the free sugar group released and not to the configuration of the linkage hydrolysed.

Gene-Reaction Schematic: ?

Gene-Reaction Schematic

Relationship Links: BRENDA:EC:3.2.1.1 , ENZYME:EC:3.2.1.1 , IUBMB-ExplorEnz:EC:3.2.1.1


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Please cite the following article in publications resulting from the use of MetaCyc: Caspi et al, Nucleic Acids Research 42:D459-D471 2014
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