The Enzyme Database

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EC 1.14.14.96     
Accepted name: 5-O-(4-coumaroyl)-D-quinate 3′-monooxygenase
Reaction: trans-5-O-(4-coumaroyl)-D-quinate + [reduced NADPH—hemoprotein reductase] + O2 = trans-5-O-caffeoyl-D-quinate + [oxidized NADPH—hemoprotein reductase] + H2O
Other name(s): 5-O-(4-coumaroyl)-D-quinate/shikimate 3′-hydroxylase; coumaroylquinate(coumaroylshikimate) 3′-monooxygenase; CYP98A3 (gene name)
Systematic name: trans-5-O-(4-coumaroyl)-D-quinate,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (3′-hydroxylating)
Comments: A cytochrome P-450 (heme-thiolate) protein, found in plants. It also acts on trans-5-O-(4-coumaroyl)shikimate.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 112131-08-5
References:
1.  Kühnl, T., Koch, U., Heller, W. and Wellman, E. Chlorogenic acid biosynthesis: characterization of a light-induced microsomal 5-O-(4-coumaroyl)-D-quinate/shikimate 3′-hydroxylase from carrot (Daucus carota L.) cell suspension cultures. Arch. Biochem. Biophys. 258 (1987) 226–232. [DOI] [PMID: 2821918]
2.  Schoch, G., Goepfert, S., Morant, M., Hehn, A., Meyer, D., Ullmann, P. and Werck-Reichhart, D. CYP98A3 from Arabidopsis thaliana is a 3′-hydroxylase of phenolic esters, a missing link in the phenylpropanoid pathway. J. Biol. Chem 276 (2001) 36566–36574. [PMID: 11429408]
3.  Franke, R., Humphreys, J.M., Hemm, M.R., Denault, J.W., Ruegger, M.O., Cusumano, J.C. and Chapple, C. The Arabidopsis REF8 gene encodes the 3-hydroxylase of phenylpropanoid metabolism. Plant J. 30 (2002) 33–45. [PMID: 11967091]
4.  Matsuno, M., Compagnon, V., Schoch, G.A., Schmitt, M., Debayle, D., Bassard, J.E., Pollet, B., Hehn, A., Heintz, D., Ullmann, P., Lapierre, C., Bernier, F., Ehlting, J. and Werck-Reichhart, D. Evolution of a novel phenolic pathway for pollen development. Science 325 (2009) 1688–1692. [PMID: 19779199]
[EC 1.14.14.96 created 1990 as EC 1.14.13.36, transferred 2018 to EC 1.14.14.96]
 
 


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