KPC-2 F72Y mutant with acylated imipenem

2-Gaussian fit: Grosse-Kunstleve RW, Sauter NK, Adams PD: Newsletter of the IUCr Commission on Crystallographic Computing 2004, 3, 22-31.

(5R)-5-[(1S,2R)-1-formyl-2-hydroxypropyl]-3-[(2-{[(E)-iminomethyl]amino}ethyl)sulfanyl]-4,5-dihydro-1H-pyrrole-2-carbox ylic acid
IMIPENEM, open form; N-FORMIMIDOYL-THIENAMYCINE, open form

Local interactions with the Glu166 base and the conformation of an active site loop play key roles in carbapenem hydrolysis by the KPC-2 beta-lactamase.

Strategic Approaches to Overcome Resistance against Gram-Negative Pathogens Using Beta-Lactamase Inhibitors and Beta-Lactam Enhancers: Activity of Three Novel Diazabicyclooctanes WCK 5153, Zidebactam (WCK 5107), and WCK 4234.

Carbapenem-hydrolyzing beta-lactamase KPC

Carbapenem-hydrolyzing beta-lactamase KPC-1

VAEPFAKLEQDFGGSIGVYAMDTGSGATVSYRAEERFPLCSSYKGFLAAAVLARSQQQAGLLDTPIRYGKNALVPWSPIS
EKYLTTGMTVAELSAAAVQYSDNAAANLLLKELGGPAGLTAFMRSIGDTTFRLDRWELELNSAIPGDARDTSSPRAVTES
LQKLTLGSALAAPQRQQFVDWLKGNTTGNHRIRAAVPADWAVGDKTGTCGVYGTANDYAVVWPTGRAPIVLAVYTRAPNK
DDKHSEAVIAAAARLALEGL

25% PEG 8,000, 0.1M KsCN, 0.1M Sodium Acetate pH:4.5

National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

KPC, Carbapenemase, Beta-lactamase, Hydrolase, Antibiotic Resistance, Enzyme, Beta-lactam, antibiotics, HYDROLASE-ANTIBIOTIC complex

VAEPFAKLEQDFGGSIGVYAMDTGSGATVSYRAEERFPLCSSFKGFLAAAVLARSQQQAGLLDTPIRYGKNALVPWSPIS
EKYLTTGMTVAELSAAAVQYSDNAAANLLLKELGGPAGLTAFMRSIGDTTFRLDRWELELNSAIPGDARDTSSPRAVTES
LQKLTLGSALAAPQRQQFVDWLKGNTTGNHRIRAAVPADWAVGDKTGTCGVYGTANDYAVVWPTGRAPIVLAVYTRAPNK
DDKHSEAVIAAAARLALEGL