| A | ANAPC4 | e5tgnA1 | A: a/b three-layered sandwiches | 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: ANAPC4 | ECOD (v294.1) |
| B | SPRY | e5tgnB1 | A: a/b three-layered sandwiches | X: Type II ABC importer transmembrane domain fold | H: Type II ABC importer transmembrane domain fold | T: Type II ABC importer transmembrane domain fold | F: SPRY | ECOD (v294.1) |
| C | MMM1, PF26544 | e5tgnC1 | A: a/b three-layered sandwiches | X: Rossmann-like | H: Rossmann-related | T: Aha1/BPI domain-like | F: MMM1, PF26544 | ECOD (v294.1) |
| D | | e5tgnD1 | A: a/b three-layered sandwiches | 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: | ECOD (v294.1) |