Superfamily: RNA polymerase sigma subunit

Lineage:

1. Root: scop
2. Class: All alpha proteins [46456]
3. Fold: RNA polymerase sigma subunit [48328]
4. Superfamily: RNA polymerase sigma subunit [48329]

Families:

1. RNA polymerase sigma subunit [48330] (5)
   1. sigma70 subunit fragments [48331]
      1. Escherichia coli [48332] (1)
      2. Thermus thermophilus [74766] (2)
   2. Sigma factor SigA fragments [74767]
      1. Thermus aquaticus [74768] (5)
   3. SigmaF fragment [74769]
      1. Bacillus stearothermophilus [74770] (1)
   4. Sigma factor SigR fragment [81883]
      1. Streptomyces coelicolor a3(2) [81884] (2)