|  | Class a: All alpha proteins [46456] (179 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 H2B [47119] (3 species) | 
|  | Species African clawed frog (Xenopus laevis) [TaxId:8355] [47121] (8 PDB entries) | 
|  | Domain d1m19d_: 1m19 D: [78382] Other proteins in same PDB: d1m19a_, d1m19b_, d1m19c_, d1m19e_, d1m19f_, d1m19g_ | 
PDB Entry: 1m19 (more details), 2.3 Å
SCOP Domain Sequences for d1m19d_:
Sequence; same for both SEQRES and ATOM records: (download)
>d1m19d_ a.22.1.1 (D:) Histone H2B {African clawed frog (Xenopus laevis)}
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reiqtavrlllpgelakhavsegtkavtkytsak
Timeline for d1m19d_: