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ENZYME entry: EC 1.1.1.304

Accepted Name
Diacetyl reductase ((S)-acetoin forming).
Alternative Name(s)
(S)-acetoin dehydrogenase.
Reaction catalysed
(S)-acetoin + NAD(+) <=> diacetyl + NADH
Comment(s)
  • The reaction is catalyzed in the reverse direction.
  • This activity is usually associated with butanediol dehydrogenase activity (EC 1.1.1.4 or EC 1.1.1.76).
  • While the butanediol dehydrogenase activity is reversible, diacetyl reductase activity is irreversible.
  • This enzyme has been reported in the bacteria Geobacillus stearothermophilus, Enterobacter aerogenes and Klebsiella pneumoniae.
  • Different from EC 1.1.1.303.
  • Formerly EC 1.1.1.5.
Cross-references
PROSITEPDOC00060
BRENDA1.1.1.304
EC2PDB1.1.1.304
ExplorEnz1.1.1.304
PRIAM enzyme-specific profiles1.1.1.304
KEGG Ligand Database for Enzyme Nomenclature1.1.1.304
IUBMB Enzyme Nomenclature1.1.1.304
IntEnz1.1.1.304
MEDLINEFind literature relating to 1.1.1.304
MetaCyc1.1.1.304
Rhea expert-curated reactions1.1.1.304
UniProtKB/Swiss-Prot
Q9ZNN8, BUDC_CORGT;  Q48436, BUDC_KLEPN;  Q04520, BUDC_RAOTE;  
Q5HJP2, BUTA_STAAC;  P66775, BUTA_STAAM;  P99120, BUTA_STAAN;  
Q6GKH9, BUTA_STAAR;  Q6GCZ8, BUTA_STAAS;  P66776, BUTA_STAAW;  
Q5HKG6, BUTA_STAEQ;  Q8CQD2, BUTA_STAES;  

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