| Class a: All alpha proteins [46456] (179 folds) |
| Fold a.38: Helix-loop-helix DNA-binding domain [47458] (1 superfamily) 4-helices; bundle, closed, left-handed twist; 2 crossover connections |
Superfamily a.38.1: Helix-loop-helix DNA-binding domain [47459] (1 family) ![]() dimer of two identical helix-loop-helix subunits |
| a.38.1.1: Helix-loop-helix DNA-binding domain [47460] (7 proteins) |
Timeline for Superfamily a.38.1: Helix-loop-helix DNA-binding domain: