5YVX:
reference: Uncovering the mechanistic basis for specific recognition of monomethylated H3K4 by the CW domain of Arabidopsis histone methyltransferase SDG8., Liu Y, Huang Y, J Biol Chem. 2018 Mar 1. pii: RA117.001390. doi: 10.1074/jbc.RA117.001390. PMID: 29496997

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).