| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867397 |
| Locus Tag | PSPTO_0157 |
| Description | trpBA operon transcriptional activator |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501677524 |
| Locus Tag | PFLCHA0_c00390 |
| Description | HTH-type transcriptional regulator TrpI |
| Strain | Pseudomonas stutzeri CCUG 29243 |
| GI | 392419161 |
| Locus Tag | A458_00370 |
| Description | LysR family transcriptional regulator |