| Strain | Pseudomonas aeruginosa RP73 |
| GI | 514408305 |
| Locus Tag | M062_03700 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Pseudomonas poae RE*1-1-14 |
| GI | 447915792 |
| Locus Tag | H045_03940 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644624 |
| Locus Tag | HCH_01790 |
| Description | RNA polymerase sigma factor RpoE |