| Strain | Pseudomonas syringae pv. tomato str. DC3000 | 
| GI | 28867847 | 
| Locus Tag | PSPTO_0619 | 
| Description | DNA-directed RNA polymerase subunit beta | 
| Strain | Pseudomonas protegens CHA0 | 
| GI | 501682958 | 
| Locus Tag | PFLCHA0_c55420 | 
| Description | DNA-directed RNA polymerase subunit beta | 
| Strain | Pseudomonas stutzeri CCUG 29243 | 
| GI | 392422669 | 
| Locus Tag | A458_18125 | 
| Description | DNA-directed RNA polymerase subunit beta |