The Enzyme Database

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EC 1.1.1.340     
Accepted name: 1-deoxy-11β-hydroxypentalenate dehydrogenase
Reaction: 1-deoxy-11β-hydroxypentalenate + NAD+ = 1-deoxy-11-oxopentalenate + NADH + H+
For diagram of pentalenolactone biosynthesis, click here
Glossary: 1-deoxy-11β-hydroxypentalenate = (1S,2R,3aR,5aS,8aR)-2-hydroxy-1,7,7-trimethyl-1,2,3,3a,5a,6,7,8-octahydrocyclopenta[c]pentalene-4-carboxylate
1-deoxy-11-oxopentalenate = (1S,3aR,5aS)-1,7,7-trimethyl-2-oxo-1,2,3,3a,5a,6,7,8-octahydrocyclopenta[c]pentalene-4-carboxylate
Other name(s): 1-deoxy-11β-hydroxypentalenic acid dehydrogenase; ptlF (gene name); penF (gene name)
Systematic name: 1-deoxy-11β-hydroxypentalenate:NAD+ oxidoreductase
Comments: Isolated from the bacterium Streptomyces avermitilis and present in many other Streptomyces species. Part of the pathway for pentalenolactone biosynthesis.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  You, Z., Omura, S., Ikeda, H. and Cane, D.E. Pentalenolactone biosynthesis: Molecular cloning and assignment of biochemical function to PtlF, a short-chain dehydrogenase from Streptomyces avermitilis, and identification of a new biosynthetic intermediate. Arch. Biochem. Biophys. 459 (2007) 233–240. [DOI] [PMID: 17178094]
[EC 1.1.1.340 created 2012]
 
 
EC 1.14.13.170     
Accepted name: pentalenolactone D synthase
Reaction: 1-deoxy-11-oxopentalenate + NADPH + H+ + O2 = pentalenolactone D + NADP+ + H2O
For diagram of pentalenolactone biosynthesis, click here
Glossary: 1-deoxy-11-oxopentalenate = (1S,3aR,5aS)-1,7,7-trimethyl-2-oxo-1,2,3,3a,5a,6,7,8-octahydrocyclopenta[c]pentalene-4-carboxylate
pentalenolactone D = (1S,4aR,6aS,9aR)-1,8,8-trimethyl-2-oxo-1,2,4,4a,6a,7,8,9-octahydropentaleno[1,6a-c]pyran-5-carboxylate
Other name(s): penE (gene name); pntE (gene name)
Systematic name: 1-deoxy-11-oxopentalenate,NADH:oxygen oxidoreductase (pentalenolactone-D-forming)
Comments: A FAD-dependent oxygenase. Isolated from the bacteria Streptomyces exfoliatus and Streptomyces arenae. The ketone undergoes a biological Baeyer-Villiger reaction. Part of the pathway of pentalenolactone biosynthesis.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Seo, M.J., Zhu, D., Endo, S., Ikeda, H. and Cane, D.E. Genome mining in Streptomyces. Elucidation of the role of Baeyer-Villiger monooxygenases and non-heme iron-dependent dehydrogenase/oxygenases in the final steps of the biosynthesis of pentalenolactone and neopentalenolactone. Biochemistry 50 (2011) 1739–1754. [DOI] [PMID: 21250661]
[EC 1.14.13.170 created 2012]
 
 
EC 1.14.13.171     
Accepted name: neopentalenolactone D synthase
Reaction: 1-deoxy-11-oxopentalenate + NADPH + H+ + O2 = neopentalenolactone D + NADP+ + H2O
For diagram of pentalenolactone biosynthesis, click here
Glossary: 1-deoxy-11-oxopentalenate = (1S,3aR,5aS)-1,7,7-trimethyl-2-oxo-1,2,3,3a,5a,6,7,8-octahydrocyclopenta[c]pentalene-4-carboxylate
neopentalenolactone D = (1S,4aR,6aS)-1,7,7-trimethyl-3-oxo-4,4a,6a,7,8,9-hexahydro-3H-pentaleno[6a,1-c]pyran-5-carboxylate
Other name(s): ptlE (gene name)
Systematic name: 1-deoxy-11-oxopentalenate,NADH:oxygen oxidoreductase (neopentalenolactone-D-forming)
Comments: A FAD-dependent oxygenase. Isolated from the bacterium Streptomyces avermitilis. The ketone undergoes a biological Baeyer-Villiger reaction.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Seo, M.J., Zhu, D., Endo, S., Ikeda, H. and Cane, D.E. Genome mining in Streptomyces. Elucidation of the role of Baeyer-Villiger monooxygenases and non-heme iron-dependent dehydrogenase/oxygenases in the final steps of the biosynthesis of pentalenolactone and neopentalenolactone. Biochemistry 50 (2011) 1739–1754. [DOI] [PMID: 21250661]
[EC 1.14.13.171 created 2012]
 
 


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