Reaction: (6S,9R)-6-hydroxy-3-oxo-α-ionol + NAD+ = (6S)-6-hydroxy-3-oxo-α-ionone + NADH + H+
For diagram of reaction, click here
Glossary: vomifoliol = (6S,9R)-6-hydroxy-3-oxo-α-ionol = (4S)-4-hydroxy-4-[(1E,3R)-3-hydroxybut-1-en-1-yl]-3,5,5-trimethylcyclohex-2-en-1-one
dehydrovomifoliol = (6S)-6-hydroxy-3-oxo-α-ionone = (4S)-4-hydroxy-3,5,5-trimethyl-4-[(1E)-3-oxobut-1-en-1-yl]cyclohex-2-en-1-one
Other name(s): vomifoliol 4'-dehydrogenase; vomifoliol:NAD+ 4'-oxidoreductase
Systematic name: vomifoliol:NAD+ oxidoreductase
Comments: Oxidizes vomifoliol to dehydrovomifoliol; involved in the metabolism of abscisic acid in Corynebacterium sp.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 94949-18-5
1. Hasegawa, S., Poling, S.M., Maier, V.P. and Bennett, R.D. Metabolism of abscisic-acid bacterial conversion to dehydrovomifoliol and vomifoliol dehydrogenase-activity Phytochemistry 23 (1984) 2769-2771.