| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 162533072 |
| Locus Tag | PSPTO_5023 |
| Description | sodium/hydrogen exchanger family protein |
| Strain | Pseudomonas aeruginosa PA7 |
| GI | 152984598 |
| Locus Tag | PSPA7_5758 |
| Description | potassium/proton antiporter |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83646236 |
| Locus Tag | HCH_03500 |
| Description | NhaP-type Na+/H+ and K+/H+ antiporter |