| Strain | Pseudomonas aeruginosa M18 |
| GI | 386059734 |
| Locus Tag | PAM18_3673 |
| Description | putative two-component sensor |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339494625 |
| Locus Tag | PSTAB_2548 |
| Description | chemotaxis histidine kinase CheA |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647836 |
| Locus Tag | HCH_05168 |
| Description | chemotaxis protein histidine kinase-like kinase |