| Strain | Pseudomonas putida W619 |
| GI | 170722859 |
| Locus Tag | PputW619_3696 |
| Description | Fis family two component sigma-54 specific transcriptional regulator |
| Strain | Pseudomonas aeruginosa LESB58 |
| GI | 218892937 |
| Locus Tag | PALES_42221 |
| Description | two-component response regulator |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647863 |
| Locus Tag | HCH_05196 |
| Description | sigma 54-dependent transcriptional activator |