2O9U:
reference: Monellin (MNEI) at 1.15 A resolution., Hobbs JR, Munger SD, Conn GL, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2007 Mar 1;63(Pt, 3):162-7. Epub 2007 Feb 13. PMID: 17329805

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