| D | Gtf3_C | e4an4D1 | A: a/b three-layered sandwiches | X: omega toxin-like | H: omega toxin-related | T: omega toxin-related | F: Gtf3_C | ECOD (v294.1) |
| D | Sec1 | e4an4D2 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Sec1 | ECOD (v294.1) |
| C | Gtf3_C | e4an4C2 | A: a/b three-layered sandwiches | X: omega toxin-like | H: omega toxin-related | T: omega toxin-related | F: Gtf3_C | ECOD (v294.1) |
| C | Sec1 | e4an4C3 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Sec1 | ECOD (v294.1) |
| B | Gtf3_C | e4an4B1 | A: a/b three-layered sandwiches | X: omega toxin-like | H: omega toxin-related | T: omega toxin-related | F: Gtf3_C | ECOD (v294.1) |
| B | Sec1 | e4an4B2 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Sec1 | ECOD (v294.1) |
| A | Gtf3_C | e4an4A2 | A: a/b three-layered sandwiches | X: omega toxin-like | H: omega toxin-related | T: omega toxin-related | F: Gtf3_C | ECOD (v294.1) |
| A | Sec1 | e4an4A3 | A: a/b three-layered sandwiches | X: Rubredoxin-like | H: Ferritin/Heme oxygenase | T: Heme oxygenase/Ribonucleotide reductase | F: Sec1 | ECOD (v294.1) |