KEGG ENZYME: 3.2.1.98

ENZYME: 3.2.1.98

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

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 410:333-46 (1975)
DOI:10.1016/0005-2744(75)90235-1

Reference

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 128:297-310 (1984)

Other DBs

ExplorEnz - The Enzyme Database:

3.2.1.98

IUBMB Enzyme Nomenclature:

3.2.1.98

ExPASy - ENZYME nomenclature database:

3.2.1.98

BRENDA, the Enzyme Database:

3.2.1.98

CAS:	72561-12-7

All links

Protein sequence (183)   
   UniProt (176)   
   SWISS-PROT (1)   
   RefSeq(pep) (2)   
   PDBSTR (4)   
DNA sequence (268)   
   RefSeq(nuc) (5)   
   GenBank (132)   
   EMBL (131)   
3D Structure (4)   
   PDB (4)   
Protein domain (6)   
   InterPro (6)   
All databases (461)   

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