Lineage for Family a.22.1.2: Archaeal histone
- Root: SCOP 1.75
Class a: All alpha proteins [46456] (284 folds) 
Fold a.22: Histone-fold [47112] (1 superfamily)
core: 3 helices; long middle helix is flanked at each end with shorter onesSuperfamily a.22.1: Histone-fold [47113] (4 families) 
Family a.22.1.2: Archaeal histone [47129] (1 protein)
Protein:
Archaeal histone [68897] (4 species) 
Species Archaeon (Pyrococcus horikoshii) [TaxId:53953] [101106] (1 PDB entry) Species Archaeon Methanopyrus kandleri [TaxId:2320] [68988] (1 PDB entry) 
Species Archaeon Methanothermus fervidus, histone A [TaxId:2180] [68895] (2 PDB entries) 
Species Archaeon Methanothermus fervidus, histone B [TaxId:2180] [68896] (3 PDB entries)
More info for Family a.22.1.2: Archaeal histone
Timeline for Family a.22.1.2: Archaeal histone:
- Family a.22.1.2: Archaeal histone first appeared (with stable ids) in SCOP 1.55
- Family a.22.1.2: Archaeal histone appears in SCOP 1.73
- Family a.22.1.2: Archaeal histone appears in SCOPe 2.01
- Family a.22.1.2: Archaeal histone appears in the current release, SCOPe 2.08