5HIX:
reference: Multivalent Interactions between an Aromatic Helical Foldamer and a DNA G-Quadruplex in the Solid State., Mandal PK, Baptiste B, Langlois d'Estaintot B, Kauffmann B, Huc I, Chembiochem. 2016 Oct 17;17(20):1911-1914. doi: 10.1002/cbic.201600281. Epub 2016, Aug 19. PMID: 27472456

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