5CDB:
reference: Solution and Solid-State Analysis of Binding of 13-Substituted Berberine Analogues to Human Telomeric G-quadruplexes., Ferraroni M, Bazzicalupi C, Papi F, Fiorillo G, Guaman-Ortiz LM, Nocentini A, Scovassi AI, Lombardi P, Gratteri P, Chem Asian J. 2016 Apr 5;11(7):1107-15. doi: 10.1002/asia.201600116. Epub 2016, Mar 11. PMID: 26865223

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