Acetoin dehydrogenase

Acetoin dehydrogenase (EC 2.3.1.190, acetoin dehydrogenase complex, acetoin dehydrogenase enzyme system, AoDH ES) is an enzyme with systematic name acetyl-CoA:acetoin O-acetyltransferase.^[1]^[2]^[3]^[4]^[5] This enzyme catalyses the following chemical reaction

acetoin + CoA + NAD⁺

\rightleftharpoons

acetaldehyde + acetyl-CoA + NADH + H⁺

This enzyme requires thiamine diphosphate.

References

↑ Priefert, H., Hein, S., Kruger, N., Zeh, K., Schmidt, B. and Steinbuchel, A. (1991). "Identification and molecular characterization of the Alcaligenes eutrophus H16 aco operon genes involved in acetoin catabolism". J. Bacteriol. 173 (13): 4056–4071. PMID 2061286.
↑ Oppermann, F.B. and Steinbuchel, A. (1994). "Identification and molecular characterization of the aco genes encoding the Pelobacter carbinolicus acetoin dehydrogenase enzyme system". J. Bacteriol. 176 (2): 469–485. PMC 205071. PMID 8110297.
↑ Kruger, N., Oppermann, F.B., Lorenzl, H. and Steinbuchel, A. (1994). "Biochemical and molecular characterization of the Clostridium magnum acetoin dehydrogenase enzyme system". J. Bacteriol. 176 (12): 3614–3630. PMID 8206840.
↑ Huang, M., Oppermann, F.B. and Steinbuchel, A. (1994). "Molecular characterization of the Pseudomonas putida 2,3-butanediol catabolic pathway". FEMS Microbiol. Lett. 124 (2): 141–150. doi:10.1111/j.1574-6968.1994.tb07276.x. PMID 7813883.
↑ Huang, M., Oppermann-Sanio, F.B. and Steinbuchel, A. (1999). "Biochemical and molecular characterization of the Bacillus subtilis acetoin catabolic pathway". J. Bacteriol. 181 (12): 3837–3841. PMID 10368162.

External links

Acetoin dehydrogenase at the US National Library of Medicine Medical Subject Headings (MeSH)

Transferases: acyltransferases (EC 2.3)

2.3.1: other than amino-acyl groups	acetyltransferases: Acetyl-Coenzyme A acetyltransferase N-Acetylglutamate synthase Choline acetyltransferase Dihydrolipoyl transacetylase Acetyl-CoA C-acyltransferase Beta-galactoside transacetylase Chloramphenicol acetyltransferase N-acetyltransferase Serotonin N-acetyl transferase HGSNAT ARD1A Histone acetyltransferase P300/CBP NAT2 palmitoyltransferases: Carnitine O-palmitoyltransferase CPT1 CPT2 Serine C-palmitoyltransferase SPTLC1 SPTLC2 other: Acyltransferase like 2 Aminolevulinic acid synthase Beta-ketoacyl-ACP synthase Glyceronephosphate O-acyltransferase Lecithin—cholesterol acyltransferase Glycerol-3-phosphate O-acyltransferase 1-acylglycerol-3-phosphate O-acyltransferase 2-acylglycerol-3-phosphate O-acyltransferase ABHD5

2.3.2: Aminoacyltransferases	Gamma-glutamyl transpeptidase Peptidyl transferase Transglutaminase Tissue transglutaminase Keratinocyte transglutaminase Factor XIII

2.3.3: converted into alkyl on transfer	Citrate synthase ATP citrate lyase HMG-CoA synthase Malate synthase

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases(list) EC2 Transferases(list) EC3 Hydrolases(list) EC4 Lyases(list) EC5 Isomerases(list) EC6 Ligases(list)

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Acetoin dehydrogenase

References

See also

External links