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{{enzyme
| Name = 2-hydroxyisoflavanone dehydratase
| EC_number = 4.2.1.105
| CAS_number = 56022-25-4
| IUBMB_EC_number = 4/2/1/105
| GO_code = 
| image = 
| width = 
| caption = 
}}
In [[enzymology]], a '''2-hydroxyisoflavanone dehydratase''' ({{EC number|4.2.1.105}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:2,7,4'-trihydroxyisoflavanone <math>\rightleftharpoons</math> daidzein + H<sub>2</sub>O

Hence, this enzyme has one [[substrate (biochemistry)|substrate]], [[2,7,4'-trihydroxyisoflavanone]], and two [[product (chemistry)|products]], [[daidzein]] and [[water|H<sub>2</sub>O]].

This enzyme belongs to the family of [[lyase]]s, specifically the hydro-lyases, which cleave carbon-oxygen bonds.  The systematic name of this enzyme class is '''2,7,4'-trihydroxyisoflavanone hydro-lyase (daidzein-forming)'''. This enzyme is also called '''2,7,4'-trihydroxyisoflavanone hydro-lyase'''.  This enzyme participates in [[isoflavonoid biosynthesis]].  

== References ==
{{reflist|1}}
* {{cite journal | author = Hakamatsuka T, Mori K, Ishida S, Ebizuka Y and Sankawa U | date = 1998 | title = Purification of 2-hydroxyisoflavanone dehydratase from the cell cultures of Pueraria lobata | journal = [[Phytochemistry (journal)|Phytochemistry]]  | volume = 49 | pages = 497&ndash;505 | doi = 10.1016/S0031-9422(98)00266-0 | issue = 2 }}

[[Category:EC 4.2.1]]
[[Category:Enzymes of unknown structure]]
[[Category:Isoflavonoids metabolism]]

{{4.2-enzyme-stub}}