| 2WNA: reference: Atomic resolution duplex structure of the simplified nucleic acid GNA., Schlegel MK, Essen LO, Meggers E, Chem Commun (Camb). 2010 Feb 21;46(7):1094-6. Epub 2009 Dec 21. PMID: 20126724 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).