| Strain | Pseudomonas mendocina ymp |
| GI | 146305386 |
| Locus Tag | Pmen_0346 |
| Description | extracellular solute-binding protein |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501683285 |
| Locus Tag | PFLCHA0_c58790 |
| Description | putrescine-binding periplasmic protein PotF |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645024 |
| Locus Tag | HCH_02206 |
| Description | spermidine/putrescine-binding periplasmic protein |