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Keywords:

  • cavitands;
  • crystallography;
  • G-quadruplexes;
  • nucleosides;
  • TASQ
Thumbnail image of graphical abstract

Growing interest in the structure of G-quartets is hampered by the problem of polymorphism. Use of a template to secure the guanines into an organized array can circumvent this problem. We report the first crystal structure of a template-assembled G-quartet. The structure is comparable to those of natural G-quartets, but it also shows quartet–quartet interactions where there is no covalent linkage between the quartets.