| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116052873 |
| Locus Tag | PA14_62540 |
| Description | two-component response regulator CbrB |
| Strain | Pseudomonas putida S16 |
| GI | 339489423 |
| Locus Tag | PPS_4540 |
| Description | two component sigma54 specific Fis family transcriptional regulator |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648897 |
| Locus Tag | HCH_06261 |
| Description | sigma 54-dependent transcriptional activator |