| Entry |
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| Name |
isomaltulose synthase;
isomaltulose synthetase;
sucrose alpha-glucosyltransferase;
trehalulose synthase
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| Class |
Isomerases;
Intramolecular transferases;
Transferring other groups
 |
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| Sysname |
sucrose glucosylmutase
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| Reaction(IUBMB) |
sucrose = 6-O-alpha-D-glucopyranosyl-D-fructofuranose [RN: R00810 R06217]
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| Reaction(KEGG) |
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| Substrate |
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| Product |
6-O-alpha-D-glucopyranosyl-D-fructofuranose [CPD: C01742]
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| 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.
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| History |
EC 5.4.99.11 created 1989 (EC 5.4.99.10 created 1984, incorporated 1992)
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| Reference |
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| Authors |
Cheetham PS. |
|---|
| Title |
The extraction and mechanism of a novel isomaltulose-synthesizing enzyme from Erwinia rhapontici. |
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| Journal |
Biochem J 220:213-20 (1984) |
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| Reference |
2 |
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| Authors |
Cheetham, P.S.J., Imber, C.E. and Isherwood, J. |
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| Title |
The formation of isomaltulose by immobilized Erwinia rhapontici. |
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| Journal |
Nature 299:628-631 (1982) |
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| Other DBs |
| ExPASy - ENZYME nomenclature database: | 5.4.99.11 |
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