| Strain | Pseudomonas protegens Pf-5 |
| GI | 70732888 |
| Locus Tag | PFL_5588 |
| Description | DNA-directed RNA polymerase subunit beta' |
| Strain | Pseudomonas aeruginosa M18 |
| GI | 386056730 |
| Locus Tag | PAM18_0661 |
| Description | DNA-directed RNA polymerase subunit beta' |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648858 |
| Locus Tag | HCH_06223 |
| Description | DNA-directed RNA polymerase subunit beta' |