| A | MshEN | e5knbA1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| A | C1-set | e5knbA4 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: C1-set | ECOD (develop294) |
| B | MshEN | e5knbB1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| B | | e5knbB3 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: | ECOD (develop294) |
| C | MshEN | e5knbC2 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| C | C1-set | e5knbC4 | A: alpha bundles | X: TIM beta/alpha-barrel | H: TIM barrels | T: TIM barrels | F: C1-set | ECOD (develop294) |
| G | MshEN | e5knbG1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| H | MshEN | e5knbH1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| D | MshEN | e5knbD1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| E | MshEN | e5knbE1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |
| F | MshEN | e5knbF1 | A: alpha bundles | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | F: MshEN | ECOD (develop294) |