| Strain | Pseudomonas syringae pv. syringae B728a |
| GI | 66046485 |
| Locus Tag | Psyr_3256 |
| Description | monovalent cation/H+ antiporter subunit F |
| Strain | Pseudomonas putida W619 |
| GI | 170722611 |
| Locus Tag | PputW619_3447 |
| Description | putative monovalent cation/H+ antiporter subunit F |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898876 |
| Locus Tag | AvCA6_19570 |
| Description | sodium hydrogen antiporter subunitF, ShaF |