Biology:(carboxyethyl)arginine beta-lactam-synthase

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Short description: Class of enzymes
(Carboxyethyl)arginine β-lactam-synthase
1mc1.png
beta-lactam synthetase. PDB 1mc1 [1]
Identifiers
EC number6.3.3.4
CAS number68247-54-1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

In enzymology, a (carboxyethyl)arginine β-lactam-synthase (EC 6.3.3.4) is an enzyme that catalyzes the chemical reaction

(carboxyethyl)arginine beta-lactam-synthase.svg

ATP + L-N2-(2-carboxyethyl)arginine [math]\displaystyle{ \rightleftharpoons }[/math] AMP + diphosphate + deoxyamidinoproclavaminate

Thus, the two substrates of this enzyme are ATP and L-N2-(2-carboxyethyl)arginine, whereas its 3 products are AMP, diphosphate, and deoxyamidinoproclavaminate.

This enzyme belongs to the family of ligases, specifically the cyclo-ligases, which form carbon-nitrogen bonds. The systematic name of this enzyme class is L-N2-(2-carboxyethyl)arginine cyclo-ligase (AMP-forming). This enzyme is also called L-2-N-(2-carboxyethyl)arginine cyclo-ligase (AMP-forming). This enzyme participates in clavulanic acid biosynthesis.

References

  1. Miller, M. T.; Bachmann, B. O.; Townsend, C. A.; Rosenzweig, A. C. (2002). "The catalytic cycle of beta -lactam synthetase observed by x-ray crystallographic snapshots". Proceedings of the National Academy of Sciences 99 (23): 14752–14757. doi:10.1073/pnas.232361199. PMID 12409610. Bibcode2002PNAS...9914752M. 

Further reading