| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116052169 |
| Locus Tag | PA14_10480 |
| Description | transcriptional regulator |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472324973 |
| Locus Tag | H681_09025 |
| Description | Homoprotocatechuate degradative operon repressor |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70730750 |
| Locus Tag | PFL_3386 |
| Description | homoprotocatechuate degradation operon regulator HpaR |