5.4.99.11: isomaltulose synthase
This is an abbreviated version!
For detailed information about isomaltulose synthase, go to the full flat file.
Word Map on EC 5.4.99.11
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5.4.99.11
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synthesis
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erwinia
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rhapontici
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palatinose
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protaminobacter
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2.4.1.1
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pantoea
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1,4-alpha-d-glucan:orthophosphate
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molasses
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plymuthica
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food industry
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vacuole-targeted
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dispersa
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whiteflies
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bemisia
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honeydew
- 5.4.99.11
- synthesis
- erwinia
- rhapontici
- palatinose
-
protaminobacter
-
2.4.1.1
- pantoea
-
1,4-alpha-d-glucan:orthophosphate
- molasses
- plymuthica
- food industry
-
vacuole-targeted
- dispersa
- whiteflies
- bemisia
- honeydew
Reaction
Synonyms
alpha-Glucosyltransferase, alpha-glycosyl transferase, Avin_08330, AZOG, EC 5.4.99.10, esi, isomaltulose synthase, Isomaltulose synthetase, MutB, NX-5, PalI, Pall, PdSIase, SIase, SmuA, Sucrose 6-glucosylmutase, Sucrose alpha-glucosyltransferase, sucrose isomerase, Sucrose mutase, Synthase, isomaltulose, Trehalulose synthase
ECTree
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Reaction
Reaction on EC 5.4.99.11 - isomaltulose synthase
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intramolecular transglycosylation mechanism in which both glucose and fructose residues appear to be enzyme-bound
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Sucrose = 6-O-alpha-D-glucopyranosyl-D-fructofuranose
Glu295 plays a role as the general acid catalyst to protonate the oxygen of the glycosidic linkage for substrate hydrolysis, the Odelta2 of Asp241 acts as the nucleophile to attack the C1 of the D-glucosyl and forms a bond with C1 to obtain beta-glucosyl-enzyme intermediate, and the isomaltulose is produced when the O-6 of the hydrolysis product D-fructose nucleophilically binds to the C1 of the D-glucosyl group of the intermediate
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Sucrose = 6-O-alpha-D-glucopyranosyl-D-fructofuranose
Glu295 plays a role as the general acid catalyst to protonate the oxygen of the glycosidic linkage for substrate hydrolysis, the Odelta2 of Asp241 acts as the nucleophile to attack the C1 of the D-glucosyl and forms a bond with C1 to obtain beta-glucosyl-enzyme intermediate, and the isomaltulose is produced when the O-6 of the hydrolysis product D-fructose nucleophilically binds to the C1 of the D-glucosyl group of the intermediate
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Sucrose = 6-O-alpha-D-glucopyranosyl-D-fructofuranose
Glu295 plays a role as the general acid catalyst to protonate the oxygen of the glycosidic linkage for substrate hydrolysis, the Odelta2 of Asp241 acts as the nucleophile to attack the C1 of the D-glucosyl and forms a bond with C1 to obtain beta-glucosyl-enzyme intermediate, and the isomaltulose is produced when the O-6 of the hydrolysis product D-fructose nucleophilically binds to the C1 of the D-glucosyl group of the intermediate
Serratia plymuthica ATCC 15928
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