EC Explorer
[browse EC tree] - [search]
EC 3.2.1.189 Details
show Brenda entryEC number
3.2.1.189
Accepted name
dioscin glycosidase (diosgenin-forming)
Reaction
3-O-[α-L-Rha-(1→4)-[α-L-Rha-(1→2)]-β-D-Glc]diosgenin + 3 H2O = D-glucose + 2 L-rhamnose + diosgenin
Other name(s)
dioscin glycosidase (aglycone-forming)
Systematic name
3-O-[α-L-Rha-(1→4)-[α-L-Rha-(1→2)]-β-D-Glc]diosgenin hydrolase (diosgenin-forming)
Comment
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-[α-L-Ara-(1→4)-[α-L-Rha-(1→2)]-β-D-Glc]diosgenin into diosgenin and free sugars as the final products. cf. EC 3.2.1.190, dioscin glycosidase (3-O-β-D-Glc-diosgenin-forming).
History
created 2013
back to topEC Tree
1 Oxidoreductases
1.1 Acting on the CH-OH group of donors
1.3.99.9 created 1976, deleted 2002
