The Enzyme Database

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Accepted name: feruloyl-CoA 6-hydroxylase
Reaction: trans-feruloyl-CoA + 2-oxoglutarate + O2 = trans-6-hydroxyferuloyl-CoA + succinate + CO2
Glossary: trans-feruloyl-CoA = 4-hydroxy-3-methoxycinnamoyl-CoA = (E)-3-(4-hydroxy-3-methoxyphenyl)propenoyl-CoA
Systematic name: feruloyl-CoA,2-oxoglutarate:oxygen oxidoreductase (6-hydroxylating)
Comments: Requires iron(II) and ascorbate. The product spontaneously undergoes trans-cis isomerization and lactonization to form scopoletin, liberating CoA in the process. The enzymes from the plants Ruta graveolens and Ipomoea batatas also act on trans-4-coumaroyl-CoA. cf. EC, trans-4-coumaroyl-CoA 2-hydroxylase.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Kai, K., Mizutani, M., Kawamura, N., Yamamoto, R., Tamai, M., Yamaguchi, H., Sakata, K. and Shimizu, B. Scopoletin is biosynthesized via ortho-hydroxylation of feruloyl CoA by a 2-oxoglutarate-dependent dioxygenase in Arabidopsis thaliana. Plant J. 55 (2008) 989–999. [PMID: 18547395]
2.  Bayoumi, S.A., Rowan, M.G., Blagbrough, I.S. and Beeching, J.R. Biosynthesis of scopoletin and scopolin in cassava roots during post-harvest physiological deterioration: the E-Z-isomerisation stage. Phytochemistry 69 (2008) 2928–2936. [PMID: 19004461]
3.  Vialart, G., Hehn, A., Olry, A., Ito, K., Krieger, C., Larbat, R., Paris, C., Shimizu, B., Sugimoto, Y., Mizutani, M. and Bourgaud, F. A 2-oxoglutarate-dependent dioxygenase from Ruta graveolens L. exhibits p-coumaroyl CoA 2′-hydroxylase activity (C2′H): a missing step in the synthesis of umbelliferone in plants. Plant J. 70 (2012) 460–470. [DOI] [PMID: 22168819]
4.  Matsumoto, S., Mizutani, M., Sakata, K. and Shimizu, B. Molecular cloning and functional analysis of the ortho-hydroxylases of p-coumaroyl coenzyme A/feruloyl coenzyme A involved in formation of umbelliferone and scopoletin in sweet potato, Ipomoea batatas (L.) Lam. Phytochemistry 74 (2012) 49–57. [PMID: 22169019]
[EC created 2019]

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