Reaction: raucaffrinoline + NADP+ = perakine + NADPH + H+
For diagram of reaction click here
Glossary: raucaffrinoline = (17R,20α,21β)-1,2-didehydro-1-demethyl-19-hydroxy-21-methyl-18-norajmalan-17-yl acetate
perakine = raucaffrine = (17R,20α,21β)-1,2-didehydro-1-demethyl-17-(acetyloxy)-21-methyl-18-norajmalan-19-al
Systematic name: raucaffrinoline:NADP+ oxidoreductase
Comments: The biosynthesis of raucaffrinoline from perakine is a side route of the ajmaline biosynthesis pathway. The enzyme is a member of the aldo-keto reductase enzyme superfamily from higher plants.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number:
References:
1. Sun, L., Ruppert, M., Sheludko, Y., Warzecha, H., Zhao, Y. and Stockigt, J. Purification, cloning, functional expression and characterization of perakine reductase: the first example from the AKR enzyme family, extending the alkaloidal network of the plant Rauvolfia. Plant Mol. Biol. 67 (2008) 455-467. [PMID: 18409028]
2. Rosenthal, C., Mueller, U., Panjikar, S., Sun, L., Ruppert, M., Zhao, Y. and Stockigt, J. Expression, purification, crystallization and preliminary X-ray analysis of perakine reductase, a new member of the aldo-keto reductase enzyme superfamily from higher plants. Acta Crystallogr. Sect. F Struct. Biol. Cryst. Commun. 62 (2006) 1286-1289. [PMID: 17142919]