Lineage for Species: Streptococcus pyogenes [TaxId: 1314]

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.4.13: Sigma3 and sigma4 domains of RNA polymerase sigma factors [88659] (4 families)

5. Family a.4.13.3: YlxM/p13-like [109706] (2 proteins) Pfam PF04297; UPF0122 structural and detectable sequence similarity to Sigma4 domain; contains extra C-terminal all-alpha oligomerization subdomain; forms different, helix-swapped dimers

6. Protein Hypothetical protein SPy1201 [109707] (1 species)

7. Species Streptococcus pyogenes [TaxId:1314] [109708] (1 PDB entry) Uniprot P67253