5UQD:
reference: Dynamic Control of X Chromosome Conformation and Repression by a Histone H4K20 Demethylase., Brejc K, Bian Q, Uzawa S, Wheeler BS, Anderson EC, King DS, Kranzusch PJ, Preston CG, Meyer BJ, Cell. 2017 Aug 26. pii: S0092-8674(17)30877-2. doi: 10.1016/j.cell.2017.07.041. PMID: 28867287

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