| Class a: All alpha proteins [46456] (202 folds) |
| Fold a.22: Histone-fold [47112] (1 superfamily) core: 3 helices; long middle helix is flanked at each end with shorter ones |
Superfamily a.22.1: Histone-fold [47113] (3 families) ![]() |
| Family a.22.1.1: Nucleosome core histones [47114] (4 proteins) form octamers composed of two copies of each of the four histones |
| Protein Histone H2A [47115] (4 species) |
| Species Baker's yeast (Saccharomyces cerevisiae), H2A.1 [TaxId:4932] [68984] (1 PDB entry) |
Timeline for Species Baker's yeast (Saccharomyces cerevisiae), H2A.1 [TaxId:4932] from a.22.1.1 Histone H2A: