| Strain | Pseudomonas brassicacearum subsp. brassicacearum NFM421 |
| GI | 330811004 |
| Locus Tag | PSEBR_a4061 |
| Description | xanthine dehydrogenase accessory factor |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339492893 |
| Locus Tag | PSTAB_0816 |
| Description | xanthine and Co dehydrogenase maturation factor |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83644438 |
| Locus Tag | HCH_01591 |
| Description | CO dehydrogenase maturation factor |