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{{Infobox enzyme
| Name = Acetoin dehydrogenase
| EC_number = 2.3.1.190
| CAS_number =
| IUBMB_EC_number = 2/3/1/190
| GO_code =
| image =
| width =
| caption =
}}
'''Acetoin dehydrogenase''' ({{EC number|2.3.1.190}}, ''acetoin dehydrogenase complex'', ''acetoin dehydrogenase enzyme system'', ''AoDH ES'') is an [[enzyme]] with system name ''acetyl-CoA:acetoin O-acetyltransferase''.<ref>{{cite journal | title = Identification and molecular characterization of the Alcaligenes eutrophus H16 aco operon genes involved in acetoin catabolism |author = Priefert, H., Hein, S., Kruger, N., Zeh, K., Schmidt, B. and Steinbuchel, A. |journal = J. Bacteriol. |year = 1991 |volume = 173 |pages = 4056–4071 |pmid = 2061286 |issue=13}}</ref><ref>{{cite journal | title = Identification and molecular characterization of the aco genes encoding the Pelobacter carbinolicus acetoin dehydrogenase enzyme system |author = Oppermann, F.B. and Steinbuchel, A. |journal = J. Bacteriol. |year = 1994 |volume = 176 |pages = 469–485 |pmid = 8110297 |issue=2 |pmc=205071}}</ref><ref>{{cite journal | title = Biochemical and molecular characterization of the Clostridium magnum acetoin dehydrogenase enzyme system |author = Kruger, N., Oppermann, F.B., Lorenzl, H. and Steinbuchel, A. |journal = J. Bacteriol. |year = 1994 |volume = 176 |pages = 3614–3630 |pmid = 8206840 |issue=12}}</ref><ref>{{cite journal | title = Molecular characterization of the Pseudomonas putida 2,3-butanediol catabolic pathway |author = Huang, M., Oppermann, F.B. and Steinbuchel, A. |journal = FEMS Microbiol. Lett. |year = 1994 |volume = 124 |pages = 141–150 |pmid = 7813883 |issue=2}}</ref><ref>{{cite journal | title = Biochemical and molecular characterization of the Bacillus subtilis acetoin catabolic pathway |author = Huang, M., Oppermann-Sanio, F.B. and Steinbuchel, A. |journal = J. Bacteriol. |year = 1999 |volume = 181 |pages = 3837–3841 |pmid = 10368162 |issue=12}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]

: [[acetoin]] + CoA + NAD+ <math>\rightleftharpoons</math> [[acetaldehyde]] + [[acetyl-CoA]] + NADH + H+

This enzyme requires [[thiamine diphosphate]].

== References ==
{{reflist}}

== See also ==
* [[Diacetyl reductase]]

== External links ==
* {{MeshName|Acetoin+dehydrogenase}}

[[Category:EC 2.3.1]]

Vague set - Revision history

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