KEGG   ENZYME: 3.2.1.94
Entry
EC 3.2.1.94                 Enzyme                                 
Name
glucan 1,6-alpha-isomaltosidase;
exo-isomaltohydrolase;
isomalto-dextranase;
isomaltodextranase;
G2-dextranase;
1,6-alpha-D-glucan isomaltohydrolase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
Sysname
6-alpha-D-glucan isomaltohydrolase
Reaction(IUBMB)
Hydrolysis of (1->6)-alpha-D-glucosidic linkages in polysaccharides, to remove successive isomaltose units from the non-reducing ends of the chains
Comment
Optimum activity is on those 1,6-alpha-D-glucans containing 6, 7 and 8 glucose units; those containing 3, 4 and 5 glucose units are hydrolysed at slower rates.
History
EC 3.2.1.94 created 1976
Orthology
K20847  glucan 1,6-alpha-isomaltosidase
Genes
KISHUT16_27710
SATKSA2016_1227
CAICaci_6974
BEGINE88_01329(imd)
BNOK8P02_14225 K8P02_16460
PHISJ5A62_00825
SMUII6J00_10200
Reference
1  [PMID:4826536]
  Authors
Sawai T, Toriyama K, Yano K
  Title
A bacterial dextranase releasing only isomaltose from dextrans.
  Journal
J Biochem 75:105-12 (1974)
DOI:10.1093/oxfordjournals.jbchem.a130363
  Sequence
Reference
2
  Authors
Sawai, T. and Niwa, Y.
  Title
Transisomaltosylation activity of a bacterial isomaltodextranase.
  Journal
Agric Biol Chem 39:1077-1083 (1975)
Other DBs
ExplorEnz - The Enzyme Database: 3.2.1.94
IUBMB Enzyme Nomenclature: 3.2.1.94
ExPASy - ENZYME nomenclature database: 3.2.1.94
BRENDA, the Enzyme Database: 3.2.1.94
CAS: 56467-68-6

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