| # | Protein Name | Antibiotic | kcat (s-1) | Km (µM) | kcat/KM |
|---|---|---|---|---|---|
| 1 | BES-1 | Amoxicillin | 22 | 5 | 4.4 |
| 2 | BES-1 | Ceftazidime | 25 | 1000 | 0.03 |
| 3 | BES-1 | Penicillin G | 28 | 5 | 5.6 |
| 4 | BES-1 | Cefpirome | 708 | 950 | 0.75 |
| 5 | BES-1 | Ticarcillin | 6 | 3 | 2 |
| 6 | BES-1 | Cefoxitin | 22 | ||
| 7 | BES-1 | Piperacillin | 7 | 3 | 2.3 |
| 8 | BES-1 | Cefotaxime | 425 | 95 | 4.5 |
| 9 | BES-1 | Imipenem | <1 | ||
| 10 | BES-1 | Cefepime | 240 | 1100 | 0.22 |
| 11 | BES-1 | Cephalothin | 173 | 18 | 9.6 |
| 12 | BES-1 | Aztreonam | 1 | 1 | 1 |
| 13 | BES-1 | Cefuroxime | 116 | 19 | 6.1 |