| EC |
1.14.14.83 |
| Accepted name: |
geraniol 8-hydroxylase |
| Reaction: |
geraniol + [reduced NADPH—hemoprotein reductase] + O2 = (6E)-8-hydroxygeraniol + [oxidized NADPH—hemoprotein reductase] + H2O |
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For diagram of acyclic monoterpenoid biosynthesis, click here |
| Other name(s): |
CYP76B6 (gene name); G10H (gene name) |
| Systematic name: |
geraniol,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (8-hydroxylating) |
| Comments: |
A cytochrome P-450 (heme thiolate) protein found in plants. Also hydroxylates nerol and citronellol, cf. EC 1.14.14.84, linalool 8-monooxygenase. The recommended numbering of geraniol gives 8-hydroxygeraniol as the product rather than 10-hydroxygeraniol as used by references 1-3. See prenol nomenclature Pr-1. The cloned enzyme also catalysed, but less efficiently, the 3′-hydroxylation of naringenin (cf. EC 1.14.14.82, flavonoid 3′-monooxygenase) [3]. |
| Links to other databases: |
BRENDA, EXPASY, Gene, KEGG, MetaCyc |
| References: |
| 1. |
Collu, G., Unver, N., Peltenburg-Looman, A.M., van der Heijden, R., Verpoorte, R. and Memelink, J. Geraniol 10-hydroxylase, a cytochrome P450 enzyme involved in terpenoid indole alkaloid biosynthesis. FEBS Lett. 508 (2001) 215–220. [DOI] [PMID: 11718718] |
| 2. |
Wang, J., Liu, Y., Cai, Y., Zhang, F., Xia, G. and Xiang, F. Cloning and functional analysis of geraniol 10-hydroxylase, a cytochrome P450 from Swertia mussotii Franch. Biosci. Biotechnol. Biochem. 74 (2010) 1583–1590. [PMID: 20699579] |
| 3. |
Sung, P.H., Huang, F.C., Do, Y.Y. and Huang, P.L. Functional expression of geraniol 10-hydroxylase reveals its dual function in the biosynthesis of terpenoid and phenylpropanoid. J. Agric. Food Chem. 59 (2011) 4637–4643. [DOI] [PMID: 21504162] |
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| [EC 1.14.14.83 created 2012 as EC 1.14.13.152, transferred 2018 to EC 1.14.14.83] |
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