| Strain | Pseudomonas fluorescens F113 |
| GI | 378949255 |
| Locus Tag | PSF113_1321 |
| Description | ECF subfamily RNA polymerase sigma-70 factor |
| Strain | Pseudomonas aeruginosa RP73 |
| GI | 514408842 |
| Locus Tag | M062_07325 |
| Description | RNA polymerase subunit sigma-24 |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648243 |
| Locus Tag | HCH_05594 |
| Description | TPR repeat-containing RNA polymerase sigma factor |