| Strain | Pseudomonas syringae pv. phaseolicola 1448A |
| GI | 71734567 |
| Locus Tag | PSPPH_0263 |
| Description | FUR family transcriptional regulator |
| Strain | Pseudomonas putida BIRD-1 |
| GI | 386009784 |
| Locus Tag | PPUBIRD1_0147 |
| Description | Ferric uptake regulator family protein |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482899131 |
| Locus Tag | AvCA6_00840 |
| Description | zinc uptake transcriptional regulator, Fur family |