| D | Flavodoxin_2 | e4yguD1 | A: beta barrels | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: Flavodoxin_2 | ECOD (v294.2) |
| C | Tcp10_C | e4yguC1 | A: beta barrels | X: Anticodon-binding domain of Class II aaRS | H: Anticodon-binding domain of Class II aaRS | T: Anticodon-binding domain of Class II aaRS | F: Tcp10_C | ECOD (v294.2) |
| B | SLT | e4yguB1 | A: beta barrels | X: Alpha-beta plaits | H: Protease propeptides/inhibitors | T: Protease propeptides/inhibitors | F: SLT | ECOD (v294.2) |
| A | Rv2632c-like | e4yguA1 | A: beta barrels | X: Rossmann-like | H: Rossmann-related | T: DHS-like NAD/FAD-binding domain | F: Rv2632c-like | ECOD (v294.2) |