| Strain | Pseudomonas syringae pv. syringae B728a |
| GI | 66045698 |
| Locus Tag | Psyr_2462 |
| Description | nitrite/sulfite reductase, hemoprotein beta-component, ferrodoxin-like:nitrite and sulfite reductase 4Fe-4S region |
| Strain | Pseudomonas fluorescens F113 |
| GI | 378951148 |
| Locus Tag | PSF113_3242 |
| Description | Sulfite reductase [NADPH] hemoprotein beta-component |
| Strain | Pseudomonas aeruginosa UCBPP-PA14 |
| GI | 116049788 |
| Locus Tag | PA14_40770 |
| Description | sulfite reductase |