Isoflavone 2'-hydroxylase
In enzymology, an isoflavone 2'-hydroxylase (EC 1.14.14.90, Formerly EC 1.14.13.89) is an enzyme that catalyzes the chemical reaction
- an isoflavone + NADPH + H+ + O2 a 2'-hydroxyisoflavone + NADP+ + H2O
| Isoflavone 2'-hydroxylase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 1.14.14.90 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
The 4 substrates of this enzyme are isoflavone, NADPH, H+, and O2, whereas its 3 products are 2'-hydroxyisoflavone, NADP+, and H2O.
This enzyme belongs to the family of oxidoreductases, specifically those acting on paired donors, with O2 as oxidant and incorporation or reduction of oxygen. The oxygen incorporated need not be derived from O2 with NADH or NADPH as one donor, and incorporation of one atom o oxygen into the other donor. The systematic name of this enzyme class is isoflavone,NADPH:oxygen oxidoreductase (2'-hydroxylating). Other names in common use include isoflavone 2'-monooxygenase, CYP81E1, and CYP Ge-3. This enzyme participates in isoflavonoid biosynthesis.
References
- Akashi T, Aoki T, Ayabe S (1998). "CYP81E1, a cytochrome P450 cDNA of licorice (Glycyrrhiza echinata L.), encodes isoflavone 2'-hydroxylase". Biochem. Biophys. Res. Commun. 251 (1): 67–70. doi:10.1006/bbrc.1998.9414. PMID 9790908.