| Strain | Pseudomonas aeruginosa PA7 |
| GI | 152985786 |
| Locus Tag | PSPA7_4321 |
| Description | putative monovalent cation/H+ antiporter subunit E |
| Strain | Pseudomonas fluorescens A506 |
| GI | 387894405 |
| Locus Tag | PflA506_3237 |
| Description | monovalent cation/proton antiporter, MnhE/PhaE subunit |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643686 |
| Locus Tag | HCH_00801 |
| Description | putative monovalent cation/H+ antiporter subunit E |