2'-hydroxydaidzein reductase

Jump to: navigation, search

In enzymology, a 2'-hydroxydaidzein reductase (EC is an enzyme that catalyzes the chemical reaction

2'-hydroxy-2,3-dihydrodaidzein + NADP+ 2'-hydroxydaidzein + NADPH + H+

Thus, the two substrates of this enzyme are 2'-hydroxy-2,3-dihydrodaidzein and NADP+, whereas its 3 products are 2'-hydroxydaidzein, NADPH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is 2'-hydroxy-2,3-dihydrodaidzein:NADP+ 2'-oxidoreductase. Other names in common use include NADPH:2'-hydroxydaidzein oxidoreductase, HDR, and 2'-hydroxydihydrodaidzein:NADP+ 2'-oxidoreductase. This enzyme participates in isoflavonoid biosynthesis.


  • IUBMB entry for
  • BRENDA references for (Recommended.)
  • PubMed references for
  • PubMed Central references for
  • Google Scholar references for
  • Fischer D, Ebenau-Jehle C, Grisebach H (1990). "Phytoalexin synthesis in soybean: purification and characterization of NADPH:2'-hydroxydaidzein oxidoreductase from elicitor-challenged soybean cell cultures". Arch. Biochem. Biophys. 276: 390&ndash, 5. PMID 2306102.

External links

The CAS registry number for this enzyme class is 126125-01-7.

Gene Ontology (GO) codes