Structural Classification of Proteins
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Superfamily: Sigma3 and sigma4 domains of RNA polymerase sigma factors

link to SUPERFAMILY database - Superfamily

Lineage:

  1. Root: scop
  2. Class: All alpha proteins [46456]
  3. Fold: DNA/RNA-binding 3-helical bundle [46688]
    core: 3-helices; bundle, closed or partly opened, right-handed twist; up-and down
  4. Superfamily: Sigma3 and sigma4 domains of RNA polymerase sigma factors [88659]
    link to SUPERFAMILY database - Superfamily

Families:

  1. Sigma3 domain [88660] (3) picpic
  2. Sigma4 domain [88665] (7) picpic
  3. YlxM/p13-like [109706] (2) picpic
    Pfam 04297; UPF0122
    structural and detectable sequence similarity to Sigma4 domain; contains extra C-terminal all-alpha oligomerization subdomain; forms different, helix-swapped dimers
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MRC site Generated from scop database 1.75 with scopm 1.101 on Wed Jun 3 10:42:06 2009
Copyright © 1994-2009 The scop authors / scop@mrc-lmb.cam.ac.uk