| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116052494 |
| Locus Tag | PA14_57940 |
| Description | RNA polymerase factor sigma-54 |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512616682 |
| Locus Tag | PCA10_10290 |
| Description | RNA polymerase sigma-54 factor |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28871588 |
| Locus Tag | PSPTO_4453 |
| Description | RNA polymerase sigma-54 factor |