| Accepted Name |
|---|
| ginsenosidase type I
|
| Reaction catalysed |
|---|
- a protopanaxadiol-type ginsenoside with two glucosyl residues at position 3 + H2O = a protopanaxadiol-type ginsenoside with one glucosyl residue at position 3 + D-glucopyranose
- a protopanaxadiol-type ginsenoside with one glucosyl residue at position 3 + H2O = a protopanaxadiol-type ginsenoside with no glycosidic modifications at position 3 + D-glucopyranose
- a protopanaxadiol-type ginsenoside with two glycosyl residues at position 20 + H2O = a protopanaxadiol-type ginsenoside with a single glucosyl residue at position 20 + a monosaccharide
|
| Comment(s) |
|---|
- The enzyme hydrolyzes the 3-O-beta-D-(1->2)-glucosidic bond, the 3-O-
beta-D-glucopyranosyl bond and the 20-O-beta-D-(1->6)-glycosidic bond
of protopanaxadiol-type ginsenosides.
- It usually leaves a single glucosyl residue attached at position 20
and one or no glucosyl residues at position 3.
- Starting with a ginsenoside that is glycosylated at both positions
(e.g. ginsenoside Rb1, Rb2, Rb3, Rc or Rd), the most common products
are ginsenoside F2 and ginsenoside C-K, with low amounts of
ginsenoside Rh2.
|
| Cross-references |
|---|
| BRENDA | 3.2.1.193 |
| EC2PDB | 3.2.1.193 |
| ExplorEnz | 3.2.1.193 |
| PRIAM enzyme-specific profiles | 3.2.1.193 |
| KEGG Ligand Database for Enzyme Nomenclature | 3.2.1.193 |
| IUBMB Enzyme Nomenclature | 3.2.1.193 |
| IntEnz | 3.2.1.193 |
| MEDLINE | Find literature relating to 3.2.1.193 |
| MetaCyc | 3.2.1.193 |
| Rhea expert-curated reactions | 3.2.1.193 |
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