| B | HpaB_N_C | e6qyiB2 | A: beta complex topology | X: Acyl-CoA dehydrogenase middle domain-like (From Topology) | H: Acyl-CoA dehydrogenase middle domain-like (From Topology) | T: Acyl-CoA dehydrogenase middle domain-like | F: HpaB_N_C | ECOD (1.6) |
| B | HpaB_N_N | e6qyiB1 | A: alpha arrays | X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase N-terminal domain-like | F: HpaB_N_N | ECOD (1.6) |
| B | HpaB | e6qyiB3 | A: alpha bundles | X: Bromodomain-like | H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase C-terminal domain-like | F: HpaB | ECOD (1.6) |
| A | HpaB_N_C | e6qyiA3 | A: beta complex topology | X: Acyl-CoA dehydrogenase middle domain-like (From Topology) | H: Acyl-CoA dehydrogenase middle domain-like (From Topology) | T: Acyl-CoA dehydrogenase middle domain-like | F: HpaB_N_C | ECOD (1.6) |
| A | HpaB_N_N | e6qyiA1 | A: alpha arrays | X: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | H: Acyl-CoA dehydrogenase N-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase N-terminal domain-like | F: HpaB_N_N | ECOD (1.6) |
| A | HpaB | e6qyiA2 | A: alpha bundles | X: Bromodomain-like | H: Acyl-CoA dehydrogenase C-terminal domain-like (From Topology) | T: Acyl-CoA dehydrogenase C-terminal domain-like | F: HpaB | ECOD (1.6) |