| Strain | Pseudomonas mendocina ymp |
| GI | 146307766 |
| Locus Tag | Pmen_2744 |
| Description | GTP cyclohydrolase I |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339494290 |
| Locus Tag | PSTAB_2213 |
| Description | GTP cyclohydrolase I |
| Strain | Pseudomonas syringae pv. tomato str. DC3000 |
| GI | 28869239 |
| Locus Tag | PSPTO_2035 |
| Description | GTP cyclohydrolase I |