3T6R:
reference: UHRF1 double tudor domain and the adjacent PHD finger act together to recognize K9me3-containing histone H3 tail., Xie S, Jakoncic J, Qian C, J Mol Biol. 2012 Jan 13;415(2):318-28. Epub 2011 Nov 12. PMID: 22100450

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