| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116048988 |
| Locus Tag | PA14_50680 |
| Description | monovalent cation/H+ antiporter subunit G |
| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431927946 |
| Locus Tag | Psest_2846 |
| Description | multisubunit potassium/proton antiporter, PhaG subunit |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643684 |
| Locus Tag | HCH_00799 |
| Description | multisubunit Na+/H+ antiporter subunit MnhG |