Lineage for Family a.4.5.64: PF1790-like

1. Root: SCOPe 2.08

2. Class a: All alpha proteins [46456] (290 folds)

3. Fold a.4: DNA/RNA-binding 3-helical bundle [46688] (14 superfamilies) core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down

4. Superfamily a.4.5: 'Winged helix' DNA-binding domain [46785] (86 families) contains a small beta-sheet (wing)

5. Family a.4.5.64: PF1790-like [140286] (1 protein) sequence similarity to PH1932 in the N-terminal domain; the C-terminal domain provides new dimerisation interface made of a beta-hairpin and a coiled coil