| Strain | Pseudomonas stutzeri A1501 |
| GI | 146282082 |
| Locus Tag | PST_1713 |
| Description | TonB domain-containing protein |
| Strain | Pseudomonas aeruginosa PACS2 |
| GI | 107099187 |
| Locus Tag | PaerPA_01000197 |
| Description | hypothetical protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83649440 |
| Locus Tag | HCH_06827 |
| Description | periplasmic protein TonB, links inner and outer membranes |