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ENZYME entry: EC 3.2.1.189

Accepted Name
Dioscin glycosidase (diosgenin-forming).
Alternative Name(s)
Dioscin glycosidase (aglycone-forming).
Reaction catalysed
3-O-[alpha-L-Rha-(1->4)-(alpha-L-Rha-(1->2))-beta-D-Glc]diosgenin + 3 H(2)O <=> D-glucose + 2 L-rhamnose + diosgenin
Comment(s)
  • The enzyme is involved in degradation of the steroid saponin dioscin by some fungi of the Absidia genus.
  • The enzyme can also hydrolyze 3-O-[alpha-L-Ara-(1->4)-(alpha-L-Rha- (1->2))-beta-D-Glc]diosgenin into diosgenin and free sugars as the final products.
  • (cf. EC 3.2.1.190).
Cross-references
BRENDA3.2.1.189
EC2PDB3.2.1.189
ExplorEnz3.2.1.189
PRIAM enzyme-specific profiles3.2.1.189
KEGG Ligand Database for Enzyme Nomenclature3.2.1.189
IUBMB Enzyme Nomenclature3.2.1.189
IntEnz3.2.1.189
MEDLINEFind literature relating to 3.2.1.189
MetaCyc3.2.1.189

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All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.2.1.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.2.-.-
All ENZYME / UniProtKB/Swiss-Prot entries corresponding to 3.-.-.-