| Strain | Pseudomonas entomophila L48 |
| GI | 104783969 |
| Locus Tag | PSEEN5051 |
| Description | sensor histidine kinase/response regulator ChpA |
| Strain | Pseudomonas aeruginosa DK2 |
| GI | 392981826 |
| Locus Tag | PADK2_02080 |
| Description | component of chemotactic signal transduction system |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643436 |
| Locus Tag | HCH_00541 |
| Description | chemotaxis protein histidine kinase-like kinase |