| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15599068 |
| Locus Tag | PA3873 |
| Description | respiratory nitrate reductase delta chain |
| Strain | Pseudomonas stutzeri ATCC 17588 = LMG 11199 |
| GI | 339492868 |
| Locus Tag | PSTAB_0791 |
| Description | NarJ |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83646716 |
| Locus Tag | HCH_04009 |
| Description | nitrate reductase molybdenum cofactor assembly chaperone |