KEGG   ENZYME: 3.2.1.98Help
Entry
EC 3.2.1.98                 Enzyme                                 

Name
glucan 1,4-alpha-maltohexaosidase;
exo-maltohexaohydrolase;
1,4-alpha-D-glucan maltohexaohydrolase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
4-alpha-D-glucan maltohexaohydrolase
Reaction(IUBMB)
Hydrolysis of (1->4)-alpha-D-glucosidic linkages in amylaceous polysaccharides, to remove successive maltohexaose residues from the non-reducing chain ends
Comment
cf. EC 3.2.1.3 glucan 1,4-alpha-glucosidase, which removes successive glucose residues; EC 3.2.1.2 beta-amylase, which removes successive maltose residues; EC 3.2.1.116 glucan 1,4-alpha-maltotriohydrolase, which removes successive maltotriose units and EC 3.2.1.60 glucan 1,4-alpha-maltotetraohydrolase, which removes successive maltotetraose residues. The products have the alpha-configuration.
History
EC 3.2.1.98 created 1978
Reference
1  [PMID:1094]
  Authors
Kainuma K, Wako K, Kobayashi S, Nogami A, Suzuki S.
  Title
Purification and some properties of a novel maltohexaose-producing exo-amylase from Aerobacter aerogenes.
  Journal
Biochim. Biophys. Acta. 410 (1975) 333-46.
Reference
2
  Authors
Nakakuki, T., Azuma, K. and Kainuma, K.
  Title
Action patterns of various exo-amylases and the anomeric configurations of their products.
  Journal
Carbohydr. Res. 128 (1984) 297-310.
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
72561-12-7

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