| Strain | Pseudomonas aeruginosa LESB58 |
| GI | 218893081 |
| Locus Tag | PALES_43661 |
| Description | Trp repressor binding protein WrbA |
| Strain | Pseudomonas stutzeri DSM 10701 |
| GI | 397686561 |
| Locus Tag | PSJM300_07240 |
| Description | WrbA |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644684 |
| Locus Tag | HCH_01857 |
| Description | multimeric flavodoxin WrbA |