| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15600553 |
| Locus Tag | PA5360 |
| Description | two-component response regulator PhoB |
| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229593403 |
| Locus Tag | PFLU6039 |
| Description | phosphate regulon two-component system response regulator |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643658 |
| Locus Tag | HCH_00771 |
| Description | phosphate regulon transcriptional regulatory protein phoB |