| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732888 |
| Locus Tag | PFL_5588 |
| Description | DNA-directed RNA polymerase subunit beta' |
| Strain | Pseudomonas brassicacearum subsp. brassicacearum NFM421 |
| GI | 330812081 |
| Locus Tag | PSEBR_a5094 |
| Description | DNA-directed RNA polymerase subunit beta |
| Strain | Pseudomonas putida GB-1 |
| GI | 167031494 |
| Locus Tag | PputGB1_0478 |
| Description | DNA-directed RNA polymerase subunit beta' |