| Strain | Pseudomonas aeruginosa M18 |
| GI | 386056300 |
| Locus Tag | PAM18_0231 |
| Description | 4-hydroxybenzoate transporter PcaK |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472325432 |
| Locus Tag | H681_11340 |
| Description | 4-hydroxybenzoate transporter PcaK |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 346642785 |
| Locus Tag | PFL_1316 |
| Description | 4-hydroxybenzoate transporter PcaK |