KEGG   ENZYME: 5.4.99.11
Entry
EC 5.4.99.11                Enzyme                                 
Name
isomaltulose synthase;
isomaltulose synthetase;
sucrose alpha-glucosyltransferase;
trehalulose synthase
Class
Isomerases;
Intramolecular transferases;
Transferring other groups
Sysname
sucrose glucosylmutase
Reaction(IUBMB)
sucrose = 6-O-alpha-D-glucopyranosyl-D-fructofuranose [RN:R00810 R06217]
Reaction(KEGG)
R00810 R06217(G)
Substrate
sucrose [CPD:C00089]
Product
6-O-alpha-D-glucopyranosyl-D-fructofuranose [CPD:C01742]
Comment
The enzyme simultaneously produces isomaltulose (6-O-alpha-D-glucopyranosyl-D-fructose) and smaller amounts of trehalulose (1-O-alpha-D-glucopyranosyl-beta-D-fructose) from sucrose.
History
EC 5.4.99.11 created 1989 (EC 5.4.99.10 created 1984, incorporated 1992)
Reference
1  [PMID:6743261]
  Authors
Cheetham PS.
  Title
The extraction and mechanism of a novel isomaltulose-synthesizing enzyme from Erwinia rhapontici.
  Journal
Biochem J 220:213-20 (1984)
DOI:10.1042/bj2200213
Reference
2
  Authors
Cheetham, P.S.J., Imber, C.E. and Isherwood, J.
  Title
The formation of isomaltulose by immobilized Erwinia rhapontici.
  Journal
Nature 299:628-631 (1982)
Other DBs
ExplorEnz - The Enzyme Database: 5.4.99.11
IUBMB Enzyme Nomenclature: 5.4.99.11
ExPASy - ENZYME nomenclature database: 5.4.99.11
BRENDA, the Enzyme Database: 5.4.99.11
CAS: 159940-49-5

  All links  
Chemical substance (4)   
   KEGG COMPOUND (2)   
   KEGG GLYCAN (2)   
Chemical reaction (3)   
   KEGG REACTION (2)   
   KEGG RCLASS (1)   
Protein sequence (35)   
   UniProt (13)   
   PDBSTR (22)   
DNA sequence (16)   
   GenBank (8)   
   EMBL (8)   
3D Structure (14)   
   PDB (14)   
All databases (72)   

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