| Strain | Pseudomonas putida F1 |
| GI | 148548721 |
| Locus Tag | Pput_3513 |
| Description | putative monovalent cation/H+ antiporter subunit E |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254239415 |
| Locus Tag | PA2G_00028 |
| Description | conserved hypothetical protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643686 |
| Locus Tag | HCH_00801 |
| Description | putative monovalent cation/H+ antiporter subunit E |