| Strain | Pseudomonas aeruginosa LESB58 |
| GI | 218893081 |
| Locus Tag | PALES_43661 |
| Description | Trp repressor binding protein WrbA |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512620100 |
| Locus Tag | PCA10_44470 |
| Description | flavoprotein WrbA |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28868892 |
| Locus Tag | PSPTO_1686 |
| Description | trp repressor binding protein |