| F | HHH | e5ht0F1 | A: a/b three-layered sandwiches | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase | T: Nucleotidyltransferase | F: HHH | ECOD (v294.1) |
| E | HHH | e5ht0E1 | A: a/b three-layered sandwiches | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase | T: Nucleotidyltransferase | F: HHH | ECOD (v294.1) |
| D | HHH | e5ht0D1 | A: a/b three-layered sandwiches | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase | T: Nucleotidyltransferase | F: HHH | ECOD (v294.1) |
| C | HHH | e5ht0C1 | A: a/b three-layered sandwiches | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase | T: Nucleotidyltransferase | F: HHH | ECOD (v294.1) |
| B | HHH | e5ht0B1 | A: a/b three-layered sandwiches | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase | T: Nucleotidyltransferase | F: HHH | ECOD (v294.1) |
| A | HHH | e5ht0A1 | A: a/b three-layered sandwiches | X: Nucleotidyltransferase-like | H: Nucleotidyltransferase | T: Nucleotidyltransferase | F: HHH | ECOD (v294.1) |