| Strain | Pseudomonas syringae pv. phaseolicola 1448A |
| GI | 71734510 |
| Locus Tag | PSPPH_0493 |
| Description | potassium/proton antiporter |
| Strain | Pseudomonas fulva 12-X |
| GI | 333898685 |
| Locus Tag | Psefu_0482 |
| Description | Cell volume regulation protein A |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83646236 |
| Locus Tag | HCH_03500 |
| Description | NhaP-type Na+/H+ and K+/H+ antiporter |