| Strain | Pseudomonas putida GB-1 |
| GI | 167032190 |
| Locus Tag | PputGB1_1177 |
| Description | RNA polymerase sigma factor RpoS |
| Strain | Pseudomonas aeruginosa LESB58 |
| GI | 218890153 |
| Locus Tag | PALES_14131 |
| Description | RNA polymerase sigma factor RpoS |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644704 |
| Locus Tag | HCH_01877 |
| Description | nonessential primary sigma factor |