Deacetoksicefalosporin-C sintaza

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Deacetoksicefalosporin-C sintaza
Identifikatori
EC broj 1.14.20.1
CAS broj 85746-10-7
IntEnz IntEnz view
BRENDA BRENDA entry
ExPASy NiceZyme view
KEGG KEGG entry
MetaCyc metabolic pathway
PRIAM profile
PDB RCSB PDB PDBe PDBj PDBsum

Deacetoksicefalosporin-C sintaza (EC 1.14.20.1, DAOCS, penicilinska N ekspandaza, DAOC sintaza) je enzim sa sistematskim imenom penicilin-N,2-oksoglutarat:kiseonik oksidoreduktaza (ekspanzija prstena).[1][2][3][4][5] Ovaj enzim katalizuje sledeću hemijsku reakciju

penicilin N + 2-oksoglutarat + O2 deacetoksicephalosporin C + sukcinat + CO2 + H2O

Ovaj enzim učestvuje u biosintezi penicilina.

Reference[uredi | uredi kod]

  1. Cantwell, C., Beckmann, R., Whiteman, P., Queener, S.W. and Abraham, E.P. (1992). „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: 283-289. PMID 1354366. 
  2. Lee, H.J., Lloyd, M.D., Harlos, K., Clifton, I.J., Baldwin, J.E. and Schofield, C.J. (2001). „Kinetic and crystallographic studies on deacetoxycephalosporin C synthase (DAOCS)”. J. Mol. Biol. 308: 937-948. PMID 11352583. 
  3. Yeh, W.K., Ghag, S.K. and Queener, S.W. (1992). „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: 396-408. 
  4. Valegaard, K., van Scheltinga, A.C.T., Lloyd, M.D., Hara, T., Ramaswamy, S., Perrakis, A., Thompson, A., Lee, H.-J., Baldwin, J.E., Schofield, C.J., Hajdu, J. and Andersson, I. (1998). „Structure of a cephalosporin synthase”. Nature 394: 805-809. PMID 9723623. 
  5. Dotzlaf, J.E. and Yeh, W.K. (1989). „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: 10219-10227. PMID 2656705. 

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