IUBMB Enzyme Nomenclature


Accepted name: (S)-N-methylcanadine 1-hydroxylase

Reaction: (S)-cis-N-methylcanadine + [reduced NADPH—hemoprotein reductase] + O2 = (S)-1-hydroxy-cis-N-methylcanadine + [oxidized NADPH—hemoprotein reductase] + H2O

For diagram of reaction click here.

Other name(s): CYP82Y1 (gene name)

Systematic name: (S)-cis-N-methylcanadine,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (1-hydroxylating)

Comments: This cytochrome P-450 (heme-thiolate) enzyme, characterized from the plant Papaver somniferum (opium poppy), participates in the biosynthesis of the isoquinoline alkaloid noscapine.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:


1. Dang, T.T. and Facchini, P.J. CYP82Y1 is N-methylcanadine 1-hydroxylase, a key noscapine biosynthetic enzyme in opium poppy. J. Biol. Chem 289 (2014) 2013-2026. [PMID: 24324259]

2. Li, Y., Li, S., Thodey, K., Trenchard, I., Cravens, A. and Smolke, C.D. Complete biosynthesis of noscapine and halogenated alkaloids in yeast. Proc. Natl Acad. Sci. USA 115 (2018) E3922-E3931. [PMID: 29610307]

[EC created 2018]

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