| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116054201 |
| Locus Tag | PA14_06180 |
| Description | RNA polymerase sigma factor |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512618976 |
| Locus Tag | PCA10_33230 |
| Description | putative RNA polymerase ECF-type sigma factor |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867674 |
| Locus Tag | PSPTO_0444 |
| Description | RNA polymerase sigma-70 family protein |