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Information on EC 3.2.1.189 - dioscin glycosidase (diosgenin-forming)

for references in articles please use BRENDA:EC3.2.1.189
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IUBMB Comments
The enzyme is involved in degradation of the steroid saponin dioscin by some fungi of the Absidia genus. The enzyme can also hydrolyse 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, dioscin glycosidase (3-O-beta-D-Glc-diosgenin-forming).
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The expected taxonomic range for this enzyme is: Absidia sp. (in: Fungi)
Synonyms
dioscin glycosidase (aglycone-forming), more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
3-O-[alpha-L-Rha-(1->4)-[alpha-L-Rha-(1->2)]-beta-D-Glc]diosgenin + 3 H2O = D-glucose + 2 L-rhamnose + diosgenin
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