| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596661 |
| Locus Tag | PA1464 |
| Description | probable purine-binding chemotaxis protein |
| Strain | Pseudomonas sp. UW4 |
| GI | 426410747 |
| Locus Tag | PputUW4_03849 |
| Description | purine-binding chemotaxis protein CheW1 |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647830 |
| Locus Tag | HCH_05161 |
| Description | chemotaxis signal transduction protein |