| Strain | Pseudomonas putida DOT-T1E |
| GI | 397696784 |
| Locus Tag | T1E_4043 |
| Description | potassium transport system protein kup |
| Strain | Pseudomonas poae RE*1-1-14 |
| GI | 447915584 |
| Locus Tag | H045_02900 |
| Description | low affinity potassium transporter protein |
| Strain | Pseudomonas aeruginosa 2192 |
| GI | 254245201 |
| Locus Tag | PA2G_06092 |
| Description | potassium uptake protein Kup |