| Strain | Pseudomonas fluorescens A506 |
| GI | 387896137 |
| Locus Tag | PflA506_5046 |
| Description | sensor histidine kinase/response regulator ChpA |
| Strain | Pseudomonas aeruginosa M18 |
| GI | 386056482 |
| Locus Tag | PAM18_0413 |
| Description | putative component of chemotactic signal transduction system |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643436 |
| Locus Tag | HCH_00541 |
| Description | chemotaxis protein histidine kinase-like kinase |