| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116048987 |
| Locus Tag | PA14_50690 |
| Description | monovalent cation/H+ antiporter subunit F |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512617261 |
| Locus Tag | PCA10_16080 |
| Description | Na(+)/H(+) antiporter subunit F |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28870636 |
| Locus Tag | PSPTO_3475 |
| Description | potassium efflux system protein PhaF |