The Enzyme Database

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EC 5.1.3.33     
Accepted name: 2-epi-5-epi-valiolone epimerase
Reaction: 2-epi-5-epi-valiolone = 5-epi-valiolone
For diagram of valiolone biosynthesis, click here
Glossary: 2-epi-5-epi-valiolone= (2S,3S,4S,5R)-2,3,4,5-tetrahydroxy-5-(hydroxymethyl)cyclohexanone
5-epi-valiolone = (2R,3S,4S,5R)-2,3,4,5-tetrahydroxy-5-(hydroxymethyl)cyclohexanone
Other name(s): CetB; EVE
Systematic name: 2-epi-5-epi-valiolone 2-epimerase
Comments: The enzyme, characterized from the bacterium Actinomyces sp. Lu 9419, is involved in the biosynthesis of the antitumor agent cetoniacytone A.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Wu, X., Flatt, P.M., Xu, H. and Mahmud, T. Biosynthetic gene cluster of cetoniacytone A, an unusual aminocyclitol from the endosymbiotic Bacterium Actinomyces sp. Lu 9419. Chembiochem 10 (2009) 304–314. [PMID: 19101977]
[EC 5.1.3.33 created 2015]
 
 


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