| Strain | Pseudomonas putida GB-1 |
| GI | 167035373 |
| Locus Tag | PputGB1_4380 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Pseudomonas aeruginosa NCGM2.S1 |
| GI | 386064435 |
| Locus Tag | NCGM2_1489 |
| Description | RNA polymerase sigma factor |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644624 |
| Locus Tag | HCH_01790 |
| Description | RNA polymerase sigma factor RpoE |