KEGG   ENZYME: 1.14.20.1Help
Entry
EC 1.14.20.1                Enzyme                                 

Name deacetoxycephalosporin-C synthase;
DAOCS;
penicillin N expandase;
DAOC synthase
Class Oxidoreductases;
Acting on paired donors, with O2 as oxidant and incorporation or
reduction of oxygen. The oxygen incorporated need not be derived
from O2;
With 2-oxoglutarate as one donor, and the other dehydrogenated
BRITE hierarchy
Sysname penicillin-N,2-oxoglutarate:oxygen oxidoreductase (ring-expanding)
Reaction(IUBMB) penicillin N + 2-oxoglutarate + O2 = deacetoxycephalosporin C +
succinate + CO2 + H2O [RN:R05301]
Reaction(KEGG) R05301
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Substrate penicillin N [CPD:C06564];
2-oxoglutarate [CPD:C00026];
O2 [CPD:C00007]
Product deacetoxycephalosporin C [CPD:C06565];
succinate [CPD:C00042];
CO2 [CPD:C00011];
H2O [CPD:C00001]
Comment Forms part of the penicillin biosynthesis pathway (for pathway,
click here).
Pathway PATH: ec00311  Penicillin and cephalosporin biosynthesis
PATH: ec01100  Metabolic pathways
Orthology KO: K12744  deacetoxycephalosporin-C synthase
KO: K12746  cephalosporin biosynthesis expandase/hydroxylase
Structures PDB: 1UNB  1UO9  1UOB  1UOF  1UOG  1W28  1W2A  2JB8  
Reference
  Authors
  Title


  Journal
  Organism
1  [PMID:1354366]
Cantwell C, Beckmann R, Whiteman P, Queener SW, Abraham EP.
Isolation of deacetoxycephalosporin C from fermentation broths of
Penicillium chrysogenum transformants: construction of a new fungal
biosynthetic pathway.
Proc. R. Soc. Lond. B. Biol. Sci. 248 (1992) 283-9.
Penicillium chrysogenum [GN:pcs]
Reference
  Authors
  Title

  Journal
  Organism
2  [PMID:11352583]
Lee HJ, Lloyd MD, Harlos K, Clifton IJ, Baldwin JE, Schofield CJ.
Kinetic and crystallographic studies on deacetoxycephalosporin C
synthase (DAOCS).
J. Mol. Biol. 308 (2001) 937-48.
Streptomyces clavuligerus
Reference
  Authors
  Title


  Journal
3
Yeh, W.K., Ghag, S.K. and Queener, S.W.
Enzymes for epimerization of isopenicillin N, ring expansion of
penicillin N, and 3'-hydroxylation of deacetoxycephalosporin C.
Function, evolution, refolding, and enzyme engineering.
Ann. N.Y. Acad. Sci. 672 (1992) 396-408.
Reference
  Authors


  Title
  Journal
  Organism
4  [PMID:9723623]
Valegard K, van Scheltinga AC, Lloyd MD, Hara T, Ramaswamy S,
Perrakis A, Thompson A, Lee HJ, Baldwin JE, Schofield CJ, Hajdu J,
Andersson I.
Structure of a cephalosporin synthase.
Nature. 394 (1998) 805-9.
Cephalosporium acremonium
Reference
  Authors
  Title


  Journal
  Organism
5  [PMID:2656705]
Dotzlaf JE, Yeh WK.
Purification and properties of deacetoxycephalosporin C synthase
from recombinant Escherichia coli and its comparison with the native
enzyme purified from Streptomyces clavuligerus.
J. Biol. Chem. 264 (1989) 10219-27.
Streptomyces clavuligerus
Other DBs ExplorEnz - The Enzyme Database: 1.14.20.1
IUBMB Enzyme Nomenclature: 1.14.20.1
ExPASy - ENZYME nomenclature database: 1.14.20.1
BRENDA, the Enzyme Database: 1.14.20.1
CAS: 85746-10-7

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