| Strain | Pseudomonas syringae pv. syringae B728a |
| GI | 66047913 |
| Locus Tag | Psyr_4689 |
| Description | Fis family molybdenum-binding protein |
| Strain | Pseudomonas putida BIRD-1 |
| GI | 386010020 |
| Locus Tag | PPUBIRD1_0397 |
| Description | ModE family transcriptional regulator |
| Strain | Azotobacter vinelandii CA6 |
| GI | 482901337 |
| Locus Tag | AvCA6_33430 |
| Description | Molybdenum-binding ModE protein |