| Strain | Pseudomonas syringae pv. tomato str. DC3000 | 
| GI | 28869028 | 
| Locus Tag | PSPTO_1823 | 
| Description | phenylalanine hydroxylase transcriptional activator PhhR | 
| Strain | Pseudomonas fluorescens SBW25 | 
| GI | 229591871 | 
| Locus Tag | PFLU4457 | 
| 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 |