| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596721 |
| Locus Tag | PA1524 |
| Description | xanthine dehydrogenase |
| Strain | Pseudomonas mendocina NK-01 |
| GI | 330502841 |
| Locus Tag | MDS_1927 |
| Description | molybdopterin dehydrogenase, FAD-binding protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83643969 |
| Locus Tag | HCH_01099 |
| Description | xanthine dehydrogenase, iron-sulfur cluster and FAD-binding subunit A |