Insights into the molecular basis for the carbenicillinase activity of PSE-4 beta-lactamase from crystallographic and kinetic studies.
Lim, D., Sanschagrin, F., Passmore, L., De Castro, L., Levesque, R.C., Strynadka, N.C.(2001) Biochemistry 40: 395-402
- PubMed: 11148033 
- DOI: 10.1021/bi001653v
- Primary Citation of Related Structures:  
1G68, 1G6A - PubMed Abstract: 
PSE-4 is a class A beta-lactamase produced by strains of Pseudomonas aeruginosa and is highly active for the penicillin derivative carbenicillin. The crystal structure of the wild-type PSE-4 carbenicillinase has been determined to 1.95 A resolution by molecular replacement and represents the first structure of a carbenicillinase published to date ...