IUBMB Enzyme Nomenclature


Accepted name: tabersonine 16-hydroxylase

Reaction: tabersonine + [reduced NADPH—hemoprotein reductase] + O2 = 16-hydroxytabersonine + [oxidized NADPH—hemoprotein reductase] + H2O

For diagram of reaction click here.

Other name(s): tabersonine-11-hydroxylase; T11H; CYP71D12 (gene name)

Systematic name: tabersonine,[reduced NADPH—hemoprotein reductase]:oxygen oxidoreductase (16-hydroxylating)

Comments: A cytochrome P-450 (heme-thiolate) protein from the plant Madagascar periwinkle (Catharanthus roseus).

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


1. St-Pierre, B. and De Luca, V. A cytochrome-P-450 monooxygenase catalyzes the first step in the conversion of tabersonine to vindoline in Catharanthus roseus. Plant Physiol. 109 (1995) 131-139. [PMID: 12228585]

2. Besseau, S., Kellner, F., Lanoue, A., Thamm, A.M., Salim, V., Schneider, B., Geu-Flores, F., Hofer, R., Guirimand, G., Guihur, A., Oudin, A., Glevarec, G., Foureau, E., Papon, N., Clastre, M., Giglioli-Guivarc'h, N., St-Pierre, B., Werck-Reichhart, D., Burlat, V., De Luca, V., O'Connor, S.E. and Courdavault, V. A pair of tabersonine 16-hydroxylases initiates the synthesis of vindoline in an organ-dependent manner in Catharanthus roseus. Plant Physiol. 163 (2013) 1792-1803. [PMID: 24108213]

[EC created 2002 as EC, transferred 2018 to EC]

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