| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229590587 |
| Locus Tag | PFLU3131 |
| Description | putative cation transporter-like protein |
| Strain | Pseudomonas stutzeri A1501 |
| GI | 146284445 |
| Locus Tag | PST_4134 |
| Description | sodium/hydrogen exchanger family protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644042 |
| Locus Tag | HCH_01176 |
| Description | NhaP-type Na+/H+ and K+/H+ antiporter |