The Enzyme Database

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Accepted name: (5R)-carbapenem-3-carboxylate synthase
Reaction: (3S,5S)-carbapenam-3-carboxylate + 2-oxoglutarate + O2 = (5R)-carbapen-2-em-3-carboxylate + succinate + CO2 + H2O
Glossary: (3S,5S)-carbapenam-3-carboxylate = (2S,5S)-7-oxo-1-azabicyclo[3.2.0]heptane-2-carboxylate
(5R)-carbapen-2-em-3-carboxylate = (5R)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylate
Other name(s): carC (gene name)
Systematic name: (3S,5S)-carbapenam-3-carboxylate,2-oxoglutarate:oxygen oxidoreductase (dehydrating)
Comments: Requires Fe2+. The enzyme is involved in the biosynthesis of the carbapenem β-lactam antibiotic (5R)-carbapen-2-em-3-carboxylate in the bacterium Pectobacterium carotovorum. It catalyses a stereoinversion at C-5 and introduces a double bond between C-2 and C-3.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Clifton, I.J., Doan, L.X., Sleeman, M.C., Topf, M., Suzuki, H., Wilmouth, R.C. and Schofield, C.J. Crystal structure of carbapenem synthase (CarC). J. Biol. Chem. 278 (2003) 20843–20850. [PMID: 12611886]
2.  Stapon, A., Li, R. and Townsend, C.A. Carbapenem biosynthesis: confirmation of stereochemical assignments and the role of CarC in the ring stereoinversion process from L-proline. J. Am. Chem. Soc. 125 (2003) 8486–8493. [PMID: 12848554]
3.  Sleeman, M.C., Smith, P., Kellam, B., Chhabra, S.R., Bycroft, B.W. and Schofield, C.J. Biosynthesis of carbapenem antibiotics: new carbapenam substrates for carbapenem synthase (CarC). ChemBioChem. 5 (2004) 879–882. [PMID: 15174175]
[EC created 2013]

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