| A | | e2iicA1 | A: alpha arrays | X: HTH | H: HTH | T: winged helix domain | F: | ECOD (v295.2) |
| C | | e2iicC1 | A: alpha arrays | 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 (v295.2) |
| D | Ribosomal_S30 | e2iicD1 | A: alpha arrays | 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: Ribosomal_S30 | ECOD (v295.2) |
| B | Aldedh | e2iicB1 | A: alpha arrays | 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: Aldedh | ECOD (v295.2) |