Importance of chiral recognition in designing metal-free ligands for G-quadruplex DNA

Dora-Maria Rasadean, Samuel Harrison, Isobel Owens, auceanne miramont, Frances Bromley, Dan Pantos

Research output: Contribution to journalArticlepeer-review

3 Citations (SciVal)


Four pairs of amino acid-functionalized naphthalenediimide enantiomers (d- and l-lysine derived NDIs) were screened toward G-quadruplex forming sequences in telomeres (h-TELO) and oncogene promoters: c-KIT1, c-KIT2, k-RAS and BCL-2. This is the first study to address the effect of point chirality toward G-quadruplex DNA stabilization using purely small organic molecules. Enantioselective behavior toward the majority of ligands was observed, particularly in the case of parallel conformations of c-KIT2 and k-RAS. Additionally, Nε-Boc-l-Lys-NDI and Nε-Boc-d-Lys-NDI discriminate between quadruplexes with parallel and hybrid topologies, which has not previously been observed with enantiomeric ligands.
Original languageEnglish
Article number1473
Issue number8
Publication statusPublished - 15 Apr 2019


  • circular dichroism
  • chiral recognition
  • G-quadruplex DNA
  • chirality
  • enantioselectivity


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