Glucan 1,4 alpha maltotriohydrolase

Glucan 1,4-alpha-maltotriohydrolase (EC 3.2.1.116, exo-maltotriohydrolase, maltotriohydrolase, 1,4-alpha-D-glucan maltotriohydrolase) is an enzyme with systematic name 4-alpha-D-glucan maltotriohydrolase. This enzyme catalyses the following chemical reaction

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

The products have the alpha-configuration.