| Strain | Pseudomonas putida S16 |
| GI | 339486272 |
| Locus Tag | PPS_1345 |
| Description | integral membrane sensor hybrid histidine kinase |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472326680 |
| Locus Tag | H681_17590 |
| Description | putative two-component sensor |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647745 |
| Locus Tag | HCH_05072 |
| Description | Na+/proline symporter |