IUBMB Enzyme Nomenclature


Accepted name: glucan 1,4-α-maltotriohydrolase

Reaction: Hydrolysis of (1→4)-α-D-glucosidic linkages in amylaceous polysaccharides, to remove successive maltotriose residues from the non-reducing chain ends

Other name(s): exo-maltotriohydrolase; maltotriohydrolase; 1,4-α-D-glucan maltotriohydrolase

Systematic name: 4-α-D-glucan maltotriohydrolase

Comments: cf. EC (β-amylase), EC (glucan 1,4-α-maltotetraohydrolase) and EC (glucan 1,4-α-maltohexaosidase). The products have the α-configuration.

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 91273-84-6


1. Nakakuki, T., Azuma, K. and Kainuma, K. Action patterns of various exo-amylases and the anomeric configurations of their products. Carbohydr. Res. 128 (1984) 297-310.

[EC created 1989]

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