1.14.20.3: (5R)-carbapenem-3-carboxylate synthase
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Reaction
Synonyms
carbapenem synthase, CarC
ECTree
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Crystallization
Crystallization on EC 1.14.20.3 - (5R)-carbapenem-3-carboxylate synthase
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hanging-drop vapor diffusion method. Crystal structures of CarC complexed with Fe(II) and 2-oxoglutarate reveal it to be hexameric (space group C2221), consistent with solution studies. CarC monomers contain a double-stranded beta-helix core that supports ligands binding a single Fe(II) to which 2-oxoglutarate complexes in a bi-dentate manner. A structure is obtained with L-N-acetylproline acting as a substrate analogue. Quantum mechanical/molecular mechanical modeling studies with stereoisomers of carbapenams and carbapenems are used to investigate substrate binding
structure of CarC/Fe(II)/2-oxoglutarate complex