| D | N6_Mtase | e4yf1D1 | A: alpha arrays | X: Four-helical up-and-down bundle | H: N-terminal helical domain in restriction-modification system methylation subunit | T: N-terminal helical domain in restriction-modification system methylation subunit | F: N6_Mtase | ECOD (v295.2) |
| C | | e4yf1C1 | A: alpha arrays | X: Alpha-lytic protease prodomain-like | H: Glycosyl hydrolase domain | T: Glycosyl hydrolase domain | F: | ECOD (v295.2) |
| B | Nop10p | e4yf1B1 | A: alpha arrays | X: OB-fold | H: Rossmann-related | T: FAD/NAD(P)-binding domain | F: Nop10p | ECOD (v295.2) |
| A | Flavodoxin_2 | e4yf1A1 | A: alpha arrays | 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 (v295.2) |