| B | HTH_3 | e3a17B1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| D | HTH_3 | e3a17D1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| E | HTH_3 | e3a17E1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| G | HTH_3 | e3a17G1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| H | HTH_3 | e3a17H1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| F | HTH_3 | e3a17F1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| C | HTH_3 | e3a17C1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |
| A | HTH_3 | e3a17A1 | A: beta barrels | X: HTH | H: HTH | T: tetra-helical, lambda repressor-like | F: HTH_3 | ECOD (v294.2) |