Figure 2

Crystal structures of the nucleosomes containing 6–4PP(outside) and 6–4PP(inside).

(a) Structure of the nucleosome containing 6–4PP(outside). (b) Structure of the nucleosome containing 6–4PP(inside). The left panels show close-up views of 6–4PP (red) and its complementary bases (green) in the nucleosomes. The 2mFo-DFc maps (contoured at 1.5 σ and colored blue) surround stick representations of the DNA around the 6–4PP residues.