| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116048983 |
| Locus Tag | PA14_50730 |
| Description | monovalent cation/H+ antiporter subunit A |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512617257 |
| Locus Tag | PCA10_16040 |
| Description | Na(+)/H(+) antiporter subunit A/B |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28870632 |
| Locus Tag | PSPTO_3471 |
| Description | putative monovalent cation/H+ antiporter subunit A |