| Strain | Pseudomonas syringae pv. tomato str. DC3000 | 
| GI | 28867847 | 
| Locus Tag | PSPTO_0619 | 
| Description | DNA-directed RNA polymerase subunit beta | 
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 | 
| GI | 339492740 | 
| Locus Tag | PSTAB_0663 | 
| Description | DNA-directed RNA polymerase subunit beta | 
| Strain | Hahella chejuensis KCTC 2396 | 
| GI | 83648859 | 
| Locus Tag | HCH_06224 | 
| Description | DNA-directed RNA polymerase subunit beta |