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Molecular Basis of Substrate Recognition and Product Release by the Klebsiella pneumoniae Carbapenemase (KPC-2)

Journal Article · · Journal of Medicinal Chemistry
Carbapenem-resistant Enterobacteriaceae are resistant to most β-lactam antibiotics due to the production of the Klebsiella pneumoniae carbapenemase (KPC-2) class A β-lactamase. Here, we present the first product complex crystal structures of KPC-2 with β-lactam antibiotics containing hydrolyzed cefotaxime and faropenem. They provide experimental insights into substrate recognition by KPC-2 and its unique cephalosporinase/carbapenemase activity. These structures also represent the first product complexes for a wild-type serine β-lactamase, elucidating the product release mechanism of these enzymes in general.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Institutes of Health (NIH)
OSTI ID:
1368248
Journal Information:
Journal of Medicinal Chemistry, Journal Name: Journal of Medicinal Chemistry Journal Issue: 8 Vol. 60; ISSN 0022-2623
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH

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Cited By (11)

β-Lactamases and β-Lactamase Inhibitors in the 21st Century journal August 2019
Discovery of dual-activity small-molecule ligands of Pseudomonas aeruginosa LpxA and LpxD using SPR and X-ray crystallography journal October 2019
Molecular Basis of Class A β-Lactamase Inhibition by Relebactam journal August 2019
Phenylboronic Acids Probing Molecular Recognition against Class A and Class C β-lactamases journal September 2019
Mechanistic Insights into β-Lactamase-Catalysed Carbapenem Degradation Through Product Characterisation journal September 2019
Cyclic boronates as versatile scaffolds for KPC-2 β-lactamase inhibition journal January 2020
Unravelling ceftazidime/avibactam resistance of KPC-28, a KPC-2 variant lacking carbapenemase activity journal May 2019
In Silico Identification and Experimental Validation of Novel KPC-2 β-lactamase Inhibitors posted_content August 2018
Antibacterial Spectrum of a Tetrazole-Based Reversible Inhibitor of Serine β-Lactamases journal May 2018
Influence of substrates and inhibitors on the structure of Klebsiella pneumoniae carbapenemase-2 journal June 2019
In silico identification and experimental validation of hits active against KPC-2 β-lactamase journal November 2018

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