| F | RES | e6iqwF1 | A: a/b three-layered sandwiches | X: P-loop domains-like | H: beta-helix of amnionless (AMN) extracellular domain | T: beta-helix of amnionless (AMN) extracellular domain | F: RES | ECOD (v294.1) |
| E | Fer4_2 | e6iqwE1 | A: a/b three-layered sandwiches | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: Fer4_2 | ECOD (v294.1) |
| D | PTE | e6iqwD1 | A: a/b three-layered sandwiches | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: PTE | ECOD (v294.1) |
| C | Fer4_2 | e6iqwC1 | A: a/b three-layered sandwiches | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: Fer4_2 | ECOD (v294.1) |
| B | Fer4_2 | e6iqwB1 | A: a/b three-layered sandwiches | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: Fer4_2 | ECOD (v294.1) |
| A | Fer4_2 | e6iqwA1 | A: a/b three-layered sandwiches | X: PriB N-terminal domain-like | H: Aconitase iron-sulfur domain | T: Aconitase iron-sulfur domain | F: Fer4_2 | ECOD (v294.1) |