| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596548 |
| Locus Tag | PA1351 |
| Description | probable sigma-70 factor, ECF subfamily |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472324395 |
| Locus Tag | H681_06105 |
| Description | ECF subfamily RNA polymerase sigma-70 factor |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70731904 |
| Locus Tag | PFL_4562 |
| Description | sigma-70 family RNA polymerase sigma factor |