| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596254 |
| Locus Tag | PA1057 |
| Description | conserved hypothetical protein |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472324641 |
| Locus Tag | H681_07355 |
| Description | cation antiporter |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70729975 |
| Locus Tag | PFL_2608 |
| Description | monovalent cation/H+ antiporter subunit E |