| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229592159 |
| Locus Tag | PFLU4761 |
| Description | histidine transport ATP-binding protein |
| Strain | Pseudomonas aeruginosa B136-33 |
| GI | 478480366 |
| Locus Tag | G655_20890 |
| Description | arginine/ornithine transport protein AotP |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647879 |
| Locus Tag | HCH_05213 |
| Description | histidine ABC transporter ATPase |