| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77457015 |
| Locus Tag | Pfl01_0788 |
| Description | AmpE |
| Strain | Pseudomonas stutzeri CCUG 29243 |
| GI | 392419733 |
| Locus Tag | A458_03300 |
| Description | inner membrane protein AmpE |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644746 |
| Locus Tag | HCH_01922 |
| Description | membrane protein required for beta-lactamase induction |