|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 1.1.1.-
Enzymes and Genes:
meso-butanediol dehydrogenase [(R)-acetoin-forming] : budC ( Serratia marcescens H30 )
diacetyl (acetoin) reductase ( Geobacillus stearothermophilus )
[(R)-acetoin forming]-meso-2,3-butanediol dehydrogenase : budC ( Klebsiella pneumoniae )
In Pathway: meso-butanediol biosynthesis I
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: 1.1.1 -- With NAD(+) or NADP(+) as acceptor
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): 1.0817871 [Latendresse13]
Instance reaction of [acetoin + NAD+ ← diacetyl + NADH + H+] (1.1.1.-):
i2: (S)-acetoin + NAD+ ← diacetyl + NADH + H+ (184.108.40.2064)
Ui97: Ui, S., Okajima, Y., Mimura, A., Kanai, H., Kobayashi, T., Kudo, T. (1997). "Sequence analysis of the gene for and characterization of D-acetoin forming meso-2,3-butanediol dehydrogenase of Klebsiella pneumoniae expressed in Escherichia coli." J. Ferment. Bioeng. 83: 32-37.
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