Electron density of bound H3K4me3.

<p>The H3K4me3 residues are shown in yellow sticks and labeled in red. Residues surrounding the peptide binding pocket are shown as cartoon and sticks and are colored as in <a href="http://www.plosgenetics.org/article/info:doi/10.1371/journal.pgen.1003239#pgen-1003239-g003" target="_blank">Figure 3</a>. The H3K4me3 peptide is covered by electron density (2Fo-Fc map at 1.0σ).