| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116048678 |
| Locus Tag | PA14_54430 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28871366 |
| Locus Tag | PSPTO_4224 |
| Description | RNA polymerase sigma-24 factor |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644624 |
| Locus Tag | HCH_01790 |
| Description | RNA polymerase sigma factor RpoE |