KEGG   ENZYME: 3.2.1.57Help
Entry
EC 3.2.1.57                 Enzyme                                 

Name
isopullulanase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
pullulan 4-glucanohydrolase (isopanose-forming)
Reaction(IUBMB)
Hydrolysis of pullulan to isopanose (6-alpha-maltosylglucose)
Comment
The enzyme has practically no action on starch. Panose (4-alpha-isomaltosylglucose) is hydrolysed to isomaltose and glucose. cf. EC 3.2.1.41 (pullulanase) and EC 3.2.1.135 (neopullulanase).
History
EC 3.2.1.57 created 1972
Reference
1
  Authors
Sakano, Y., Masuda, N. and Kobayashi, T.
  Title
Hydrolysis of pullulan by a novel enzyme from Aspergillus niger.
  Journal
Agric. Biol. Chem. 35 (1971) 971-973.
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
37288-43-0

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