Class a: All alpha proteins [46456] (218 folds) |
Fold a.4: DNA/RNA-binding 3-helical bundle [46688] (13 superfamilies) core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down |
Superfamily a.4.5: "Winged helix" DNA-binding domain [46785] (55 families) contains a small beta-sheet (wing) |
Family a.4.5.5: ArsR-like transcriptional regulators [46801] (2 proteins) The N- and C-terminal helical extensions to the common fold form the dimer interface |
Metal-sensing transcriptional repressor CzrA [109664] (1 species) |
Species Staphylococcus aureus [TaxId:1280] [109665] (2 PDB entries) |
SmtB repressor [46802] (1 species) |
Species Cyanobacteria (Synechococcus), pcc7942 [TaxId:1129] [46803] (4 PDB entries) |
Timeline for Family a.4.5.5: ArsR-like transcriptional regulators: