KEGG   ENZYME: 6.3.3.6Help
Entry
EC 6.3.3.6                  Enzyme                                 

Name
carbapenam-3-carboxylate synthase;
CarA (ambiguous);
CPS (ambiguous);
carbapenam-3-carboxylate ligase;
6-methyl-(2S,5S)-5-carboxymethylproline cyclo-ligase (AMP-forming)
Class
Ligases;
Forming carbon-nitrogen bonds;
Cyclo-ligases
BRITE hierarchy
Sysname
(2S,5S)-5-carboxymethylproline cyclo-ligase (AMP-forming)
Reaction(IUBMB)
ATP + (2S,5S)-5-carboxymethylproline = AMP + diphosphate + (3S,5S)-carbapenam 3-carboxylate [RN:R10556]
Reaction(KEGG)
Substrate
ATP [CPD:C00002];
(2S,5S)-5-carboxymethylproline [CPD:C17366]
Product
AMP [CPD:C00020];
diphosphate [CPD:C00013];
(3S,5S)-carbapenam 3-carboxylate
Comment
The enzyme is involved in the biosynthesis of the carbapenem beta-lactam antibiotic (5R)-carbapen-2-em-3-carboxylate in the bacterium Pectobacterium carotovorum.
History
EC 6.3.3.6 created 2013 as 6.3.1.16, transferred 2013 to EC 6.3.3.6
Pathway
Carbapenem biosynthesis
Biosynthesis of antibiotics
Orthology
K18316  
carbapenam-3-carboxylate synthase
K18582  
carbapenam-3-carboxylate synthase
Genes
PLU: 
plu0182(cpmA)
PTT: 
SERR: 
DZE: 
PAO: 
SCT: 
SCY: 
SFA: 
STRP: 
Taxonomy
Reference
1  [PMID:12820893]
  Authors
Gerratana B, Stapon A, Townsend CA
  Title
Inhibition and alternate substrate studies on the mechanism of carbapenam synthetase from Erwinia carotovora.
  Journal
Biochemistry. 42 (2003) 7836-47.
Reference
2  [PMID:12890666]
  Authors
Miller MT, Gerratana B, Stapon A, Townsend CA, Rosenzweig AC
  Title
Crystal structure of carbapenam synthetase (CarA).
  Journal
J. Biol. Chem. 278 (2003) 40996-1002.
  Sequence
Reference
3  [PMID:19371088]
  Authors
Raber ML, Arnett SO, Townsend CA
  Title
A conserved tyrosyl-glutamyl catalytic dyad in evolutionarily linked enzymes: carbapenam synthetase and beta-lactam synthetase.
  Journal
Biochemistry. 48 (2009) 4959-71.
  Sequence
Reference
4  [PMID:17658887]
  Authors
Arnett SO, Gerratana B, Townsend CA
  Title
Rate-limiting steps and role of active site Lys443 in the mechanism of carbapenam synthetase.
  Journal
Biochemistry. 46 (2007) 9337-45.
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 

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