| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15600553 |
| Locus Tag | PA5360 |
| Description | two-component response regulator PhoB |
| Strain | Pseudomonas putida S16 |
| GI | 339490047 |
| Locus Tag | PPS_5168 |
| Description | two component winged helix family transcriptional regulator |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643658 |
| Locus Tag | HCH_00771 |
| Description | phosphate regulon transcriptional regulatory protein phoB |