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SCOPe

  • Classes: All alpha proteins
  • Folds: DNA/RNA-binding 3-helical bundle
  • Superfamilies: Sigma3 and sigma4 domains of RNA polymerase sigma factors
Families:
  • Sigma3 domain
    15
  • Sigma4 domain
    27
  • YlxM/p13-like
    2
  • automated matches
    10
* Number of SCOP families of each Family
PDL