| Strain | Pseudomonas mendocina ymp |
| GI | 146307766 |
| Locus Tag | Pmen_2744 |
| Description | GTP cyclohydrolase I |
| Strain | Pseudomonas protegens CHA0 |
| GI | 501681864 |
| Locus Tag | PFLCHA0_c44270 |
| Description | GTP cyclohydrolase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643422 |
| Locus Tag | HCH_00527 |
| Description | GTP cyclohydrolase I |