5MVB:
reference: Solution NMR Structure of a Ligand/Hybrid-2-G-Quadruplex Complex Reveals Rearrangements that Affect Ligand Binding., Wirmer-Bartoschek J, Bendel LE, Jonker HRA, Grun JT, Papi F, Bazzicalupi C, Messori L, Gratteri P, Schwalbe H, Angew Chem Int Ed Engl. 2017 Jun 12;56(25):7102-7106. doi:, 10.1002/anie.201702135. Epub 2017 May 19. PMID: 28524432

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