4YAQ:
reference: Redesigned HIV antibodies exhibit enhanced neutralizing potency and breadth., Willis JR, Sapparapu G, Murrell S, Julien JP, Singh V, King HG, Xia Y, Pickens JA, LaBranche CC, Slaughter JC, Montefiori DC, Wilson IA, Meiler J, Crowe JE Jr, J Clin Invest. 2015 Jun 1;125(6):2523-31. doi: 10.1172/JCI80693. Epub 2015 May, 18. PMID: 25985274

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