Lineage for Family a.4.13.3: YlxM/p13-like
- Root: SCOPe 2.02
Class a: All alpha proteins [46456] (284 folds) 
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
Superfamily a.4.13: Sigma3 and sigma4 domains of RNA polymerase sigma factors [88659] (3 families) 
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
Proteins:
Hypothetical protein SAV1236 [116818] (1 species) Species Staphylococcus aureus, strain Mu50 / ATCC 700699 [TaxId:1280] [116819] (1 PDB entry)
Uniprot P67248
Hypothetical protein SPy1201 [109707] (1 species) Species Streptococcus pyogenes [TaxId:1314] [109708] (1 PDB entry)
Uniprot P67253
More info for Family a.4.13.3: YlxM/p13-like
Timeline for Family a.4.13.3: YlxM/p13-like:
- Family a.4.13.3: YlxM/p13-like first appeared in SCOP 1.69, called Family a.4.13.3: YlxM/p13-like (Pfam 04297; UPF0122)
- Family a.4.13.3: YlxM/p13-like appears in SCOPe 2.01
- Family a.4.13.3: YlxM/p13-like appears in SCOPe 2.03
- Family a.4.13.3: YlxM/p13-like appears in the current release, SCOPe 2.08