| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15600690 |
| Locus Tag | PA5497 |
| Description | class II (cobalamin-dependent) ribonucleotide-diphosphate reductase subunit, NrdJa |
| Strain | Pseudomonas stutzeri A1501 |
| GI | 146280505 |
| Locus Tag | PST_0109 |
| Description | ribonucleotide reductase, alpha subunit |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83647576 |
| Locus Tag | HCH_04895 |
| Description | ribonucleotide reductase subunit alpha |