| Strain | Pseudomonas aeruginosa M18 |
| GI | 386059734 |
| Locus Tag | PAM18_3673 |
| Description | putative two-component sensor |
| Strain | Pseudomonas resinovorans NBRC 106553 |
| GI | 512619631 |
| Locus Tag | PCA10_39780 |
| Description | two-component histidine kinase CheA |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28869186 |
| Locus Tag | PSPTO_1982 |
| Description | chemotaxis sensor histidine kinase CheA |