| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 162533072 |
| Locus Tag | PSPTO_5023 |
| Description | sodium/hydrogen exchanger family protein |
| Strain | Pseudomonas putida DOT-T1E |
| GI | 397692967 |
| Locus Tag | T1E_0197 |
| Description | Cell volume regulation A-like protein |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482902130 |
| Locus Tag | AvCA6_45090 |
| Description | potassium/proton antiporter |