Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Induced β-lactamase activities of strains KJ and KJΔZ treated with various β-lactams
| Strain | Induced-β-lactamase sp acta (Un/mg) |
||||
|---|---|---|---|---|---|
| Aztreonam | Cefoxitin | Carbenicillin | Cefuroxime | Piperacillin | |
| KJ | 304 ± 42 | 793 ± 95 | 388 ± 40 | 1,868 ± 215 | 702 ± 84 |
| KJΔZ | 344 ± 51 | 818 ± 101 | 428 ± 52 | 448 ± 51 | 336 ± 46 |
One unit of β-lactamase activity is defined as 1 nanomole of nitrocefin hydrolyzed per minute. The results are expressed as the mean ± standard deviation of three independent determinations.
