| 4H29: reference: Crystal Structure of a Promoter Sequence in the B-raf Gene Reveals an Intertwined Dimer Quadruplex., Wei D, Todd AK, Zloh M, Gunaratnam M, Parkinson GN, Neidle S, J Am Chem Soc. 2013 Dec 26;135(51):19319-29. doi: 10.1021/ja4101358. Epub 2013, Dec 11. PMID: 24295054 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).