| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596352 |
| Locus Tag | PA1155 |
| Description | NrdB, tyrosyl radical-harboring component of class Ia ribonucleotide reductase |
| Strain | Pseudomonas denitrificans ATCC 13867 |
| GI | 472325041 |
| Locus Tag | H681_09365 |
| Description | ribonucleotide-diphosphate reductase subunit beta |
| Strain | Pseudomonas protegens Pf-5 |
| GI | 70731866 |
| Locus Tag | PFL_4524 |
| Description | ribonucleotide-diphosphate reductase subunit beta |