| Strain | Pseudomonas stutzeri DSM 10701 |
| GI | 397685527 |
| Locus Tag | PSJM300_02040 |
| Description | potassium/proton antiporter |
| Strain | Pseudomonas sp. UW4 |
| GI | 426407296 |
| Locus Tag | PputUW4_00382 |
| Description | potassium/proton antiporter |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83646236 |
| Locus Tag | HCH_03500 |
| Description | NhaP-type Na+/H+ and K+/H+ antiporter |