| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15599249 |
| Locus Tag | PA4054 |
| Description | GTP cyclohydrolase II / 3,4-dihydroxy-2-butanone 4-phosphate synthase |
| Strain | Pseudomonas syringae pv. phaseolicola 1448A |
| GI | 71736794 |
| Locus Tag | PSPPH_4505 |
| Description | bifunctional 3,4-dihydroxy-2-butanone 4-phosphate synthase/GTP cyclohydrolase II-like protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648596 |
| Locus Tag | HCH_05955 |
| Description | 3,4-dihydroxy-2-butanone 4-phosphate synthase |