| Strain | Pseudomonas putida DOT-T1E |
| GI | 397697189 |
| Locus Tag | T1E_4449 |
| Description | binding-protein-dependent transport system protein |
| Strain | Pseudomonas stutzeri DSM 10701 |
| GI | 397688812 |
| Locus Tag | PSJM300_18600 |
| Description | putrescine ABC transporter permease |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645026 |
| Locus Tag | HCH_02208 |
| Description | spermidine/putrescine ABC transporter membrane protein |