| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28871318 |
| Locus Tag | PSPTO_4176 |
| Description | sigma-54 dependent transcriptional regulator/response regulator |
| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229588674 |
| Locus Tag | PFLU1134 |
| Description | putative two-component system response regulator |
| Strain | Pseudomonas aeruginosa B136-33 |
| GI | 478479887 |
| Locus Tag | G655_18490 |
| Description | two-component response regulator |