| Strain | Pseudomonas aeruginosa B136-33 |
| GI | 478480499 |
| Locus Tag | G655_21555 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431928192 |
| Locus Tag | Psest_3100 |
| Description | RNA polymerase, sigma-24 subunit, RpoE |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644624 |
| Locus Tag | HCH_01790 |
| Description | RNA polymerase sigma factor RpoE |