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. Author manuscript; available in PMC: 2008 Dec 1.
Published in final edited form as: Curr Opin Struct Biol. 2008 Jun 3;18(3):282–289. doi: 10.1016/j.sbi.2008.04.003

Figure 1. Structure of the nucleosome (pdb code 1aoi).

Figure 1

DNA is shown in grey, H2A in yellow, H2B in red, H3 in blue, and H4 in green, respectively. Only one of the two H2A-H2B dimers is shown in each panel for clarity. The molecular two-fold axis dissecting the H3 four-helix bundle is indicated by a dashed line. Regions of interaction between the H2A-H2B dimer and the (H3-H4)2 tetramer are indicated by solid ovals (left panel), whereas homotypic interactions between H3 or H2A are indicated by dashed ovals (right panel).