SCOP 1.63: Superfamily a.22.1: Histone-fold

Lineage for Superfamily a.22.1: Histone-fold

1. Root: SCOP 1.63

2. Class a: All alpha proteins [46456] (171 folds)

3. Fold a.22: Histone-fold [47112] (1 superfamily)
   core: 3 helices; long middle helix is flanked at each end with shorter ones

4. Superfamily a.22.1: Histone-fold [47113] (3 families)

Families:

1. a.22.1.1: Nucleosome core histones [47114] (4 proteins)
   form octamers composed of two copies of each of the four histones

2. a.22.1.2: Archaeal histone [47129] (1 protein)

3. a.22.1.3: TBP-associated factors, TAFs [47134] (10 proteins)

More info for Superfamily a.22.1: Histone-fold

Timeline for Superfamily a.22.1: Histone-fold:

• Superfamily a.22.1: Histone-fold first appeared (with stable ids) in SCOP 1.55
  
• Superfamily a.22.1: Histone-fold appears in SCOP 1.61
  
• Superfamily a.22.1: Histone-fold appears in SCOP 1.65
  
• Superfamily a.22.1: Histone-fold appears in the current release, SCOPe 2.08