| E | GIY-YIG | e4x1iE1 | A: a/b three-layered sandwiches | X: Alpha-beta plaits | H: Protease propeptides/inhibitors | T: Protease propeptides/inhibitors | F: GIY-YIG | ECOD (v294.1) |
| D | GIY-YIG | e4x1iD1 | A: a/b three-layered sandwiches | X: Alpha-beta plaits | H: Protease propeptides/inhibitors | T: Protease propeptides/inhibitors | F: GIY-YIG | ECOD (v294.1) |
| B | SBP_bac_5 | e4x1iB1 | A: a/b three-layered sandwiches | X: Alpha-beta plaits | H: Protease propeptides/inhibitors | T: Protease propeptides/inhibitors | F: SBP_bac_5 | ECOD (v294.1) |
| C | GIY-YIG | e4x1iC1 | A: a/b three-layered sandwiches | X: Alpha-beta plaits | H: Protease propeptides/inhibitors | T: Protease propeptides/inhibitors | F: GIY-YIG | ECOD (v294.1) |
| A | SBP_bac_5 | e4x1iA1 | A: a/b three-layered sandwiches | X: Alpha-beta plaits | H: Protease propeptides/inhibitors | T: Protease propeptides/inhibitors | F: SBP_bac_5 | ECOD (v294.1) |