Fig. 1: Cryo-EM structures of nucleosomes containing H2A and H2A.W.
From: Molecular and structural basis of the chromatin remodeling activity by Arabidopsis DDM1
Cryo-EM structures of nucleosome containing AtH2A (a) and AtH2A.W (b). Arrowheads indicate the terminal DNA detected by cryo-EM density maps. Structures of AtH2A (c) and AtH2A.W (d) complexed with H3. Red and yellow dashed lines indicate the disordered regions in AtH2A nucleosomes (c). The two contact sites discussed in panel e are enclosed in dashed boxes (i) and (ii). e Close-up views of regions (i) and (ii) from panel d, where AtH2A.W and H3 are colored green and yellow, respectively. Map-to-density figures of region (i) in the nucleosomes containing AtH2A and AtH2A.W are shown in Supplementary Fig. 4. f Graphical summary for the flexibility of the entry/exit nucleosomal DNA ends in the nucleosomes containing H2A.W (upper) and H2A (lower).
