| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28869028 |
| Locus Tag | PSPTO_1823 |
| Description | phenylalanine hydroxylase transcriptional activator PhhR |
| Strain | Pseudomonas poae RE*1-1-14 |
| GI | 447917636 |
| Locus Tag | H045_13215 |
| Description | transcriptional regulation of aroF, aroG, tyrA and aromatic amino acid transport |
| Strain | Pseudomonas aeruginosa B136-33 |
| GI | 478480385 |
| Locus Tag | G655_20985 |
| Description | transcriptional regulator PhhR |