| 2LFX: reference: Structures of (5'S)-8,5'-Cyclo-2'-deoxyguanosine Mismatched with dA or dT., Huang H, Das RS, Basu AK, Stone MP, Chem Res Toxicol. 2012 Feb 20;25(2):478-90. Epub 2012 Feb 6. PMID: 22309170 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).