The Enzyme Database

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Accepted name: 5-epiaristolochene 1,3-dihydroxylase
Reaction: 5-epiaristolochene + 2 [reduced NADPH—hemoprotein reductase] + 2 O2 = capsidiol + 2 [oxidized NADPH—hemoprotein reductase] + 2 H2O
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Other name(s): 5-epi-aristolochene 1,3-dihydroxylase; EAH; CYP71D20
Systematic name: 5-epiaristolochene,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (1- and 3-hydroxylating)
Comments: A cytochrome P-450 (heme-thiolate) protein. Kinetic studies suggest that 1β-hydroxyepiaristolochene is mainly formed first followed by hydroxylation at C-3. However the reverse order via 3α-hydroxyepiaristolochene does occur.
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc
1.  Ralston, L., Kwon, S.T., Schoenbeck, M., Ralston, J., Schenk, D.J., Coates, R.M. and Chappell, J. Cloning, heterologous expression, and functional characterization of 5-epi-aristolochene-1,3-dihydroxylase from tobacco (Nicotiana tabacum). Arch. Biochem. Biophys. 393 (2001) 222–235. [DOI] [PMID: 11556809]
2.  Takahashi, S., Zhao, Y., O'Maille, P.E., Greenhagen, B.T., Noel, J.P., Coates, R.M. and Chappell, J. Kinetic and molecular analysis of 5-epiaristolochene 1,3-dihydroxylase, a cytochrome P450 enzyme catalyzing successive hydroxylations of sesquiterpenes. J. Biol. Chem. 280 (2005) 3686–3696. [DOI] [PMID: 15522862]
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