| Strain | Pseudomonas aeruginosa PAO1 |
| GI | 15597035 |
| Locus Tag | PA1838 |
| Description | sulfite reductase |
| Strain | Pseudomonas fluorescens SBW25 |
| GI | 229590124 |
| Locus Tag | PFLU2657 |
| Description | putative sulfite reductase |
| Strain | Hahella chejuensis KCTC 2396 |
| GI | 83645329 |
| Locus Tag | HCH_02538 |
| Description | sulfite reductase subunit beta (hemoprotein) |