| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732888 |
| Locus Tag | PFL_5588 |
| Description | DNA-directed RNA polymerase subunit beta' |
| Strain | Pseudomonas putida DOT-T1E |
| GI | 397694694 |
| Locus Tag | T1E_1935 |
| Description | DNA-directed RNA polymerase subunit beta |
| Strain | Pseudomonas stutzeri CCUG 29243 |
| GI | 392422668 |
| Locus Tag | A458_18120 |
| Description | DNA-directed RNA polymerase subunit beta' |