| Strain | Pseudomonas brassicacearum subsp. brassicacearum NFM421 |
| GI | 330808069 |
| Locus Tag | PSEBR_a1338 |
| Description | RNA polymerase sigma factor |
| Strain | Pseudomonas poae RE*1-1-14 |
| GI | 447915792 |
| Locus Tag | H045_03940 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Pseudomonas putida DOT-T1E |
| GI | 397693055 |
| Locus Tag | T1E_0285 |
| Description | RNA polymerase sigma factor AlgU |