5K1P:
reference: Genetically encoded fluorophenylalanines enable insights into the recognition of lysine trimethylation by an epigenetic reader., Lee YJ, Schmidt MJ, Tharp JM, Weber A, Koenig AL, Zheng H, Gao J, Waters ML, Summerer D, Liu WR, Chem Commun (Camb). 2016 Oct 18;52(85):12606-12609. PMID: 27711380

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