Lineage for Species: Sulfolobus tokodaii [TaxId: 111955]

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.4.5.50: TrmB-like [109680] (2 proteins) The N- and C-terminal helical extensions to the common fold form the dimer interface, distinct from other known families

6. Protein Hypothetical transcriptional regulator ST1889 [140273] (1 species)

7. Species Sulfolobus tokodaii [TaxId:111955] [140274] (1 PDB entry) Uniprot Q96ZE4 1-109