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Your query returned 1 entry. Printable version
EC | 3.2.1.194 | ||||
Accepted name: | ginsenosidase type IV | ||||
Reaction: | a protopanaxatriol-type ginsenoside with two glycosyl residues at position 6 + 2 H2O = a protopanaxatriol-type ginsenoside with no glycosidic modification at position 6 + D-glucopyranose + a monosaccharide (overall reaction) (1a) a protopanaxatriol-type ginsenoside with two glycosyl residues at position 6 + H2O = a protopanaxatriol-type ginsenoside with a single glucosyl at position 6 + a monosaccharide (1b) a protopanaxatriol-type ginsenoside with a single glucosyl at position 6 + H2O = a protopanaxatriol-type ginsenoside with no glycosidic modification at position 6 + D-glucopyranose |
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For diagram of protopanaxatriol ginsenosides ginsenosidases, click here | |||||
Glossary: | ginsenoside Re = 20-(β-D-glucopyranosyl)oxy-6α-[α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranosyloxy]dammar-24-en-3β,12β-diol ginsenoside Rg1 = 6α,20-bis(β-D-glucopyranosyl)oxy-dammar-24-en-3β,12β-diol ginsenoside F1 = 20-(β-D-glucopyranosyloxy)dammar-24-en-3β,6α,12β-triol |
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Systematic name: | protopanaxatriol-type ginsenoside 6-β-D-glucohydrolase | ||||
Comments: | Ginsenosidase type IV catalyses the sequential hydrolysis of the 6-O-β-D-(1→2)-glycosidic bond or the 6-O-α-D-(1→2)-glycosidic bond in protopanaxatriol-type ginsenosides with a disacchride attached to the C6 position, followed by the hydrolysis of the remaining 6-O-β-D-glycosidic bond (e.g. ginsenoside Re → ginsenoside Rg1 → ginsenoside F1). | ||||
Links to other databases: | BRENDA, EXPASY, KEGG, MetaCyc | ||||
References: |
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