Entry |
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Name |
2-hydroxyisoflavanone dehydratase;
2,7,4'-trihydroxyisoflavanone hydro-lyase;
2,7,4'-trihydroxyisoflavanone hydro-lyase (daidzein-forming)
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Class |
Lyases;
Carbon-oxygen lyases;
Hydro-lyases
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Sysname |
2,4',7-trihydroxyisoflavanone hydro-lyase (daidzein-forming)
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Reaction(IUBMB) |
(1) 2,4',7-trihydroxyisoflavanone = daidzein + H2O [RN: R07317];
(2) 2,4',5,7-tetrahydroxyisoflavanone = genistein + H2O
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Reaction(KEGG) |
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Substrate |
2,4',7-trihydroxyisoflavanone [CPD: C15567];
2,4',5,7-tetrahydroxyisoflavanone [CPD: C12631]
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Product |
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Comment |
Catalyses the final step in the formation of the isoflavonoid skeleton. The reaction also occurs spontaneously.
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History |
EC 4.2.1.105 created 2004, modified 2013
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Pathway |
ec01110 | Biosynthesis of secondary metabolites |
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Orthology |
K13258 | 2-hydroxyisoflavanone dehydratase |
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Genes |
GMX: | 100785409 547489(HIDH) |
CCAJ: | 109791254 109794824 109801193 109801222 |
APRC: | 113870130 113871120 |
TPRA: | 123882884 123909768 |
PSAT: | 127076827 127097146 |
» show all
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Reference |
1 |
Authors |
Hakamatsuka T, Mori K, Ishida S, Ebizuka Y, Sankawa U. |
Title |
Purification of 2-hydroxyisoflavanone dehydratase from the cell cultures of Pueraria lobata. |
Journal |
Phytochemistry 49:497-505 (1998) |
Other DBs |
ExPASy - ENZYME nomenclature database: | 4.2.1.105 |
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