| Strain | Pseudomonas mendocina NK-01 |
| GI | 330504173 |
| Locus Tag | MDS_3259 |
| Description | periplasmic nitrate reductase subunit NapB |
| Strain | Pseudomonas aeruginosa NCGM2.S1 |
| GI | 386064986 |
| Locus Tag | NCGM2_2046 |
| Description | cytochrome c protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83646108 |
| Locus Tag | HCH_03366 |
| Description | nitrate reductase cytochrome c-type subunit |