| Strain | Pseudomonas aeruginosa LESB58 |
| GI | 218892131 |
| Locus Tag | PALES_34121 |
| Description | ECF sigma factor, FemI |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472325690 |
| Locus Tag | H681_12630 |
| Description | ECF subfamily RNA polymerase sigma-70 factor |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70729659 |
| Locus Tag | PFL_2291 |
| Description | RNA polymerase sigma factor, FecI family |