| Strain | Pseudomonas fulva 12-X |
| GI | 333901955 |
| Locus Tag | Psefu_3777 |
| Description | GTP cyclohydrolase-2 |
| Strain | Pseudomonas stutzeri RCH2 |
| GI | 431928629 |
| Locus Tag | Psest_3544 |
| Description | GTP cyclohydrolase II |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648507 |
| Locus Tag | HCH_05867 |
| Description | GTP cyclohydrolase II |