| Strain | Pseudomonas fluorescens Pf0-1 |
| GI | 77461831 |
| Locus Tag | Pfl01_5610 |
| Description | response regulator receiver domain-containing protein |
| Strain | Pseudomonas stutzeri DSM 4166 |
| GI | 386019113 |
| Locus Tag | PSTAA_0475 |
| Description | two-component response regulator |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643656 |
| Locus Tag | HCH_00769 |
| Description | CheY-like receiver protein |