| Q93UT1 | n/a | 2xsj | SO3 | B | 504 | e2xsjA1 | Alpha-beta plaits | Sulfite reductase, domains 1 and 3 | Sulfite reductase, domains 1 and 3 | NIR_SIR_ferr |
| Q93UT1 | n/a | 2xsj | SO3 | B | 504 | e2xsjA8 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | NIR_SIR |
| Q93UT1 | n/a | 2xsj | SO3 | E | 504 | e2xsjD1 | Alpha-beta plaits | Sulfite reductase, domains 1 and 3 | Sulfite reductase, domains 1 and 3 | NIR_SIR_ferr |
| Q93UT1 | n/a | 2xsj | SO3 | E | 504 | e2xsjD8 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | NIR_SIR |