| Strain | Pseudomonas syringae pv. tomato str. DC3000 | 
| GI | 28867847 | 
| Locus Tag | PSPTO_0619 | 
| Description | DNA-directed RNA polymerase subunit beta | 
| Strain | Pseudomonas poae RE*1-1-14 | 
| GI | 447918600 | 
| Locus Tag | H045_18050 | 
| Description | DNA-directed RNA polymerase subunit beta | 
| Strain | Pseudomonas aeruginosa B136-33 | 
| GI | 478476869 | 
| Locus Tag | G655_03355 | 
| Description | DNA-directed RNA polymerase subunit beta |