SCOP 1.73: Family a.22.1.4: Bacterial histone-fold protein

Lineage for Family a.22.1.4: Bacterial histone-fold protein

1. Root: SCOP 1.73

2. Class a: All alpha proteins [46456] (258 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] (4 families)

5. Family a.22.1.4: Bacterial histone-fold protein [101318] (2 proteins)
   duplication: two repeats of histone fold are arranged as subunits in the archael histone dimer; new structure from Thermus thermophilus (1wws) comprised of dimers similar the to the H3-H4 tetramer

Proteins:

1. Hypothetical protein Aq_328 [101319] (1 species)

   • Species Aquifex aeolicus [TaxId:63363] [101320] (1 PDB entry)

2. Hypothetical protein TTHA1479 [140402] (1 species)

   • Species Thermus thermophilus [TaxId:274] [140403] (2 PDB entries)

More info for Family a.22.1.4: Bacterial histone-fold protein

Timeline for Family a.22.1.4: Bacterial histone-fold protein:

• Family a.22.1.4: Bacterial histone-fold protein first appeared in SCOP 1.67, called Family a.197.1.1: Hypothetical protein Aq 328
  
• Family a.22.1.4: Bacterial histone-fold protein appears in SCOP 1.71
  
• Family a.22.1.4: Bacterial histone-fold protein appears in SCOP 1.75
  
• Family a.22.1.4: Bacterial histone-fold protein appears in the current release, SCOPe 2.08