| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15595610 |
| Locus Tag | PA0413 |
| Description | component of chemotactic signal transduction system |
| Strain | Pseudomonas putida W619 |
| GI | 170719662 |
| Locus Tag | PputW619_0476 |
| Description | CheA signal transduction histidine kinase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643436 |
| Locus Tag | HCH_00541 |
| Description | chemotaxis protein histidine kinase-like kinase |