| A | COX6A | e5azxA1 | A: a/b three-layered sandwiches | X: cradle loop barrel | H: RIFT-related | T: Alanine racemase-C | F: COX6A | ECOD (v294.1) |
| B | MMS1_N | e5azxB1 | A: a/b three-layered sandwiches | X: beta-propeller-like | H: beta-propeller | T: 7-bladed | F: MMS1_N | ECOD (v294.1) |
| C | euk_SelB_III | e5azxC1 | 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: euk_SelB_III | ECOD (v294.1) |
| D | | e5azxD1 | 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) |