The Enzyme Database

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EC 1.14.14.93     
Accepted name: 3,9-dihydroxypterocarpan 6a-monooxygenase
Reaction: (6aR,11aR)-3,9-dihydroxypterocarpan + [reduced NADPH—hemoprotein reductase] + O2 = (6aS,11aS)-3,6a,9-trihydroxypterocarpan + [oxidized NADPH—hemoprotein reductase] + H2O
For diagram of glyceollin biosynthesis (part 2), click here
Other name(s): 3,9-dihydroxypterocarpan 6a-hydroxylase; 3,9-dihydroxypterocarpan 6α-monooxygenase (erroneous); CYP93A1 (gene name)
Systematic name: (6aR,11aR)-3,9-dihydroxypterocarpan,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (6a-hydroxylating)
Comments: A cytochrome P-450 (heme-thiolate) protein found in soybean. The product of the reaction is the biosynthetic precursor of the glyceollin phytoalexins.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 92584-16-2
References:
1.  Hagmann, M.-L., Heller, W. and Grisebach, H. Induction of phytoalexin synthesis in soybean. Stereospecific 3,9-dihydroxypterocarpan 6a-hydroxylase from elicitor-induced soybean cell cultures. Eur. J. Biochem. 142 (1984) 127–131. [DOI] [PMID: 6540173]
2.  Schopfer, C.R., Kochs, G., Lottspeich, F. and Ebel, J. Molecular characterization and functional expression of dihydroxypterocarpan 6a-hydroxylase, an enzyme specific for pterocarpanoid phytoalexin biosynthesis in soybean (Glycine max L.). FEBS Lett. 432 (1998) 182–186. [PMID: 9720921]
[EC 1.14.14.93 created 1989 as EC 1.14.13.28, transferred 2018 to EC 1.14.14.93]
 
 


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