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Accepted name: 2′-hydroxyisoflavone reductase
Reaction: vestitone + NADP
= 2′-hydroxyformononetin + NADPH + H + +
For diagram of the biosynthesis of formononetin and derivatives,
Other name(s): NADPH:2′-hydroxyisoflavone oxidoreductase; isoflavone reductase; 2′,7-dihydroxy-4′,5′-methylenedioxyisoflavone reductase
Systematic name: vestitone:NADP
Comments: In the reverse reaction, a 2′-hydroxyisoflavone is reduced to an isoflavanone; 2′-hydroxypseudobaptigenin also acts. Involved in the biosynthesis of the pterocarpin phytoalexins medicarpin and maackiain.
Links to other databases:
BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 128449-69-4
Tiemann, K., Hinderer, W. and Barz, W. Isolation of NADPH:isoflavone oxidoreductase, a new enzyme of pterocarpan biosynthesis in cell suspensions of
Cicer arietinum. FEBS Lett. 213 (1987) 324–328.
[EC 220.127.116.11 created 1990]
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