| Strain | Pseudomonas putida BIRD-1 |
| GI | 386012950 |
| Locus Tag | PPUBIRD1_3427 |
| Description | Putative monovalent cation/H+ antiporter subunit E |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501680124 |
| Locus Tag | PFLCHA0_c26750 |
| Description | monovalent cation/proton antiporter, MnhE/PhaE subunit |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254239415 |
| Locus Tag | PA2G_00028 |
| Description | conserved hypothetical protein |