The Enzyme Database

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Accepted name: indole-3-carbonyl nitrile 4-hydroxylase
Reaction: indole-3-carbonyl nitrile + [reduced NADPH—hemoprotein reductase] + O2 = 4-hydroxyindole-3-carbonyl nitrile + [oxidized NADPH—hemoprotein reductase] + H2O
Glossary: indole-3-carbonyl nitrile = 2-(1H-indole-3-yl)-2-oxoacetonitrile
4-hydroxyindole-3-carbonyl nitrile = 2-(4-hydroxy-1H-indole-3-yl)-2-oxoacetonitrile
Other name(s): CYP82C2
Systematic name: indole-3-carbonyl nitrile,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (4-hydroxylating)
Comments: A cytochrome P-450 (heme-thiolate) protein characterized from the plant Arabidopsis thaliana. Involved in biosynthesis of small cyanogenic compounds that take part in pathogen defense. The enzyme also catalyses the 5-hydroxylation of xanthotoxin [1].
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Kruse, T., Ho, K., Yoo, H.D., Johnson, T., Hippely, M., Park, J.H., Flavell, R. and Bobzin, S. In planta biocatalysis screen of P450s identifies 8-methoxypsoralen as a substrate for the CYP82C subfamily, yielding original chemical structures. Chem. Biol. 15 (2008) 149–156. [PMID: 18291319]
2.  Rajniak, J., Barco, B., Clay, N.K. and Sattely, E.S. A new cyanogenic metabolite in Arabidopsis required for inducible pathogen defence. Nature 525 (2015) 376–379. [PMID: 26352477]
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