| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77461525 |
| Locus Tag | Pfl01_5304 |
| Description | CheA Signal transduction histidine kinase (STHK) |
| 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 |