| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15596977 |
| Locus Tag | PA1780 |
| Description | assimilatory nitrite reductase small subunit |
| Strain | Pseudomonas putida S16 |
| GI | 339487514 |
| Locus Tag | PPS_2607 |
| Description | Rieske (2Fe-2S) domain-containing protein |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83648462 |
| Locus Tag | HCH_05822 |
| Description | ferredoxin subunit of nitrite reductase and ring-hydroxylating dioxygenases |