2L7V:
reference: Solution Structure of a 2:1 Quindoline-c-MYC G-Quadruplex: Insights into G-Quadruplex-Interactive Small Molecule Drug Design., Dai J, Carver M, Hurley LH, Yang D, J Am Chem Soc. 2011 Nov 9;133(44):17673-80. Epub 2011 Oct 14. PMID: 21967482

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