| C | SidC_N | e4d11C1 | A: a/b three-layered sandwiches | X: YrdC/RibB | H: YrdC/RibB | T: YrdC/RibB | F: SidC_N | ECOD (v294.1) |
| F | Iso_dh | e4d11F1 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Iso_dh | ECOD (v294.1) |
| E | PemK_toxin | e4d11E2 | A: a/b three-layered sandwiches | X: HTH | H: Toll/Interleukin receptor TIR domain | T: Toll/Interleukin receptor TIR domain | F: PemK_toxin | ECOD (v294.1) |
| E | Iso_dh | e4d11E3 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Iso_dh | ECOD (v294.1) |
| D | PemK_toxin | e4d11D2 | A: a/b three-layered sandwiches | X: HTH | H: Toll/Interleukin receptor TIR domain | T: Toll/Interleukin receptor TIR domain | F: PemK_toxin | ECOD (v294.1) |
| D | Iso_dh | e4d11D3 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Iso_dh | ECOD (v294.1) |
| B | PemK_toxin | e4d11B1 | A: a/b three-layered sandwiches | X: HTH | H: Toll/Interleukin receptor TIR domain | T: Toll/Interleukin receptor TIR domain | F: PemK_toxin | ECOD (v294.1) |
| A | PemK_toxin | e4d11A2 | A: a/b three-layered sandwiches | X: HTH | H: Toll/Interleukin receptor TIR domain | T: Toll/Interleukin receptor TIR domain | F: PemK_toxin | ECOD (v294.1) |
| A | Iso_dh | e4d11A3 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Iso_dh | ECOD (v294.1) |