| Q72H18 | n/a | 2y0f | SF4 | A | 501 | e2y0fA1 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | A | 501 | e2y0fA2 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | A | 501 | e2y0fB3 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | B | 501 | e2y0fA2 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | B | 501 | e2y0fB4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | C | 501 | e2y0fC4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | C | 501 | e2y0fD3 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | D | 501 | e2y0fC3 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | GcpE |
| Q72H18 | n/a | 2y0f | SF4 | D | 501 | e2y0fD4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | GcpE |
| Q72H18 | n/a | 4g9p | SF4 | A | 501 | e4g9pA4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | GcpE |