| 2ARG: reference: Formation of an amino-acid-binding pocket through adaptive zippering-up of a large DNA hairpin loop., Lin CH, Wang W, Jones RA, Patel DJ, Chem Biol 1998 Oct;5(10):555-72. PMID: 9818148 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).