2LE6:
reference: Stacking of G-quadruplexes: NMR structure of a G-rich oligonucleotide with potential anti-HIV and anticancer activity., Do NQ, Lim KW, Teo MH, Heddi B, Phan AT, Nucleic Acids Res. 2011 Aug 12. PMID: 21840903

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