3T4B:
reference: Crystal structure of the HCV IRES central domain reveals strategy for start-codon positioning., Berry KE, Waghray S, Mortimer SA, Bai Y, Doudna JA, Structure. 2011 Oct 12;19(10):1456-66. PMID: 22000514

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