5DGJ:
reference: Oxadiazole-Based Cell Permeable Macrocyclic Transition State Inhibitors of Norovirus 3CL Protease., Damalanka VC, Kim Y, Alliston KR, Weerawarna PM, Galasiti Kankanamalage AC, Lushington GH, Mehzabeen N, Battaile KP, Lovell S, Chang KO, Groutas WC, J Med Chem. 2016 Feb 8. PMID: 26823007

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