1QYG:
reference: Diversity in hapten recognition: structural study of an anti-cocaine antibody M82G2., Pozharski E, Moulin A, Hewagama A, Shanafelt AB, Petsko GA, Ringe D, J Mol Biol. 2005 Jun 10;349(3):570-82. Epub 2005 Apr 21. PMID: 15885702

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