| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431927951 |
| Locus Tag | Psest_2851 |
| Description | NADH:ubiquinone oxidoreductase subunit L/multisubunit Na+/H+ antiporter, MnhA subunit |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501680127 |
| Locus Tag | PFLCHA0_c26780 |
| Description | putative K(+)/H(+) antiporter subunit A/B |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643689 |
| Locus Tag | HCH_00804 |
| Description | putative monovalent cation/H+ antiporter subunit A |