| Strain | Pseudomonas mendocina ymp |
| GI | 146307766 |
| Locus Tag | Pmen_2744 |
| Description | GTP cyclohydrolase I |
| Strain | Pseudomonas aeruginosa B136-33 |
| GI | 478479552 |
| Locus Tag | G655_16815 |
| Description | GTP cyclohydrolase I |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643422 |
| Locus Tag | HCH_00527 |
| Description | GTP cyclohydrolase I |