2G5K:
reference: Crystal Structure of the Homo sapiens Cytoplasmic Ribosomal Decoding Site Complexed with Apramycin., Kondo J, Francois B, Urzhumtsev A, Westhof E, Angew Chem Int Ed Engl. 2006 May 12;45(20):3310-3314. PMID: 16596680

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