| H | | e3aicH3 | A: Alpha helical domain of ribonucleotide reductases | X: Alpha helical domain of ribonucleotide reductases | H: Alpha helical domain of ribonucleotide reductases | T: | F: | ECOD (20:10:01) |
| G | | e3aicG1 | A: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: ANAPC4 | F: | ECOD (20:10:01) |
| F | | e3aicF1 | A: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: ANAPC4 | F: | ECOD (20:10:01) |
| E | | e3aicE1 | A: MocoBD/DmpA-related | X: MocoBD/DmpA-related | H: Retrovirus capsid protein-C | T: FRB_dom | F: | ECOD (20:10:01) |
| D | | e3aicD1 | A: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: ANAPC4 | F: | ECOD (20:10:01) |
| C | | e3aicC1 | A: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | X: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | H: Sulfite reductase hemoprotein (SiRHP), domains 2 and 4 | T: ANAPC4 | F: | ECOD (20:10:01) |
| B | | e3aicB1 | A: MocoBD/DmpA-related | X: MocoBD/DmpA-related | H: Retrovirus capsid protein-C | T: FRB_dom | F: | ECOD (20:10:01) |
| A | | e3aicA1 | A: MocoBD/DmpA-related | X: MocoBD/DmpA-related | H: Retrovirus capsid protein-C | T: FRB_dom | F: | ECOD (20:10:01) |