| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431926886 |
| Locus Tag | Psest_1741 |
| Description | response regulator with CheY-like receiver, AAA-type ATPase, and DNA-binding domains |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472324983 |
| Locus Tag | H681_09075 |
| Description | two-component response regulator CheY |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647838 |
| Locus Tag | HCH_05170 |
| Description | CheY-like receiver protein |