KEGG   ENZYME: 1.14.14.90
Entry
EC 1.14.14.90               Enzyme                                 

Name
isoflavone 2'-hydroxylase;
isoflavone 2'-monooxygenase;
CYP81E1;
CYP Ge-3
Class
Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
Sysname
isoflavone,[reduced NADPH---hemoprotein reductase]:oxygen oxidoreductase (2'-hydroxylating)
Reaction(IUBMB)
an isoflavone + [reduced NADPH---hemoprotein reductase] + O2 = a 2'-hydroxyisoflavone + [oxidized NADPH---hemoprotein reductase] + H2O [RN:R07371]
Reaction(KEGG)
Substrate
isoflavone [CPD:C00799];
[reduced NADPH---hemoprotein reductase] [CPD:C03024];
O2 [CPD:C00007]
Product
2'-hydroxyisoflavone [CPD:C02921];
[oxidized NADPH---hemoprotein reductase] [CPD:C03161];
H2O [CPD:C00001]
Comment
A cytochrome P-450 (heme-thiolate) protein. Acts on daidzein, formononetin and genistein. EC 1.14.14.89, 4'-methoxyisoflavone 2'-hydroxylase, has the same reaction but is more specific as it requires a 4'-methoxyisoflavone.
History
EC 1.14.14.90 created 2005 as EC 1.14.13.89, transferred 2018 to EC 1.14.14.90
Pathway
ec00943  Isoflavonoid biosynthesis
ec01110  Biosynthesis of secondary metabolites
Orthology
K13260  isoflavone/4'-methoxyisoflavone 2'-hydroxylase
Genes
CPAP: 110822377
CIT: 102624248
CIC: CICLE_v10025420mg
TCC: 18601853 18601857 18601860 18601861
GRA: 105763176 105789260
GHI: 107916731 107936806 107945765 107953970
GAB: 108470315 108476762
DZI: 111282012 111282131 111282224 111282978 111283036 111283932 111308417
EGR: 104420349
GMX: 100784650 100790507 100797371 100798269 100801092(CYP81E11) 100804509 100807819 100811727 100812102
LJA: Lj0g3v0281229.2(Lj0g3v0281229.2) Lj2g3v1925640.1(Lj2g3v1925640.1) Lj4g3v0189840.1(Lj4g3v0189840.1) Lj4g3v0189850.1(Lj4g3v0189850.1)
POP: 18101164
SLY: 101250559
SPEN: 107011466
SOT: 102601877
NTA: 107782936
NSY: 104238470
NTO: 104120546
NAU: 109213256
INI: 109151908
OEU: 111367220
DCR: 108196113
 » show all
Reference
1  [PMID:9790908]
  Authors
Akashi T, Aoki T, Ayabe S
  Title
CYP81E1, a cytochrome P450 cDNA of licorice (Glycyrrhiza echinata L.), encodes isoflavone 2'-hydroxylase.
  Journal
Biochem Biophys Res Commun 251:67-70 (1998)
DOI:10.1006/bbrc.1998.9414
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 1.14.14.90
IUBMB Enzyme Nomenclature: 1.14.14.90
ExPASy - ENZYME nomenclature database: 1.14.14.90
BRENDA, the Enzyme Database: 1.14.14.90
CAS: 110183-49-8

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