| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28871366 |
| Locus Tag | PSPTO_4224 |
| Description | RNA polymerase sigma-24 factor |
| Strain | Pseudomonas stutzeri DSM 4166 |
| GI | 386019814 |
| Locus Tag | PSTAA_1186 |
| Description | RNA polymerase sigma factor AlgU |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644624 |
| Locus Tag | HCH_01790 |
| Description | RNA polymerase sigma factor RpoE |