| B | Diphthamide_syn_3rd | e6bxlB3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Iron-sulphur enzyme Dph2 | F: Diphthamide_syn_3rd | ECOD (1.6) |
| B | Diphthamide_syn_2nd | e6bxlB2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Iron-sulphur enzyme Dph2 | F: Diphthamide_syn_2nd | ECOD (1.6) |
| B | Diphthamide_syn_1st | e6bxlB1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Iron-sulphur enzyme Dph2 | F: Diphthamide_syn_1st | ECOD (1.6) |
| A | Diphthamide_syn_3rd | e6bxlA2 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Iron-sulphur enzyme Dph2 | F: Diphthamide_syn_3rd | ECOD (1.6) |
| A | Diphthamide_syn_2nd | e6bxlA3 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Iron-sulphur enzyme Dph2 | F: Diphthamide_syn_2nd | ECOD (1.6) |
| A | Diphthamide_syn_1st | e6bxlA1 | A: a/b three-layered sandwiches | X: Flavodoxin-like | H: Class I glutamine amidotransferase-like | T: Iron-sulphur enzyme Dph2 | F: Diphthamide_syn_1st | ECOD (1.6) |