| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28867420 |
| Locus Tag | PSPTO_0180 |
| Description | Trk system potassium uptake protein TrkA |
| Strain | Pseudomonas putida ND6 |
| GI | 395446388 |
| Locus Tag | YSA_05096 |
| Description | potassium transporter peripheral membrane protein |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482898963 |
| Locus Tag | AvCA6_00140 |
| Description | potassium transporter peripheral membrane component |