| Strain | Pseudomonas aeruginosa PA7 |
| GI | 152984341 |
| Locus Tag | PSPA7_3598 |
| Description | GTP cyclohydrolase I |
| Strain | Pseudomonas putida HB3267 |
| GI | 431801371 |
| Locus Tag | B479_07075 |
| Description | GTP cyclohydrolase I |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643422 |
| Locus Tag | HCH_00527 |
| Description | GTP cyclohydrolase I |