Biology:2-hydroxyisoflavanone dehydratase

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Short description: Class of enzymes
2-hydroxyisoflavanone dehydratase
Identifiers
EC number4.2.1.105
CAS number56022-25-4
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

The enzyme 2-hydroxyisoflavanone dehydratase (EC 4.2.1.105) catalyzes the chemical reaction

2,7,4′-trihydroxyisoflavanone [math]\displaystyle{ \rightleftharpoons }[/math] daidzein + H2O

This enzyme belongs to the family of lyases, 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.

The variant GmHID1 from Glycine max converts 2-hydroxyisoflavone to isoflavones, mostly daidzein and genistein.[1]

References

  • "Purification of 2-hydroxyisoflavanone dehydratase from the cell cultures of Pueraria lobata". Phytochemistry 49 (2): 497–505. 1998. doi:10.1016/S0031-9422(98)00266-0.