| A | Polyoma_coat | e4oebA1 | A: a/b three-layered sandwiches | X: Four-helical up-and-down bundle | H: Thymidylate synthase/dCMP hydroxymethylase | T: Thymidylate synthase/dCMP hydroxymethylase | F: Polyoma_coat | ECOD (v294.1) |
| B | Thymidylat_synt | e4oebB1 | A: a/b three-layered sandwiches | X: Four-helical up-and-down bundle | H: Thymidylate synthase/dCMP hydroxymethylase | T: Thymidylate synthase/dCMP hydroxymethylase | F: Thymidylat_synt | ECOD (v294.1) |
| C | Thymidylat_synt | e4oebC1 | A: a/b three-layered sandwiches | X: Four-helical up-and-down bundle | H: Thymidylate synthase/dCMP hydroxymethylase | T: Thymidylate synthase/dCMP hydroxymethylase | F: Thymidylat_synt | ECOD (v294.1) |
| D | Thymidylat_synt | e4oebD1 | A: a/b three-layered sandwiches | X: Four-helical up-and-down bundle | H: Thymidylate synthase/dCMP hydroxymethylase | T: Thymidylate synthase/dCMP hydroxymethylase | F: Thymidylat_synt | ECOD (v294.1) |