Saintomé C, Alberti P, Guinot N, Lejault P, Chatain J, Mailliet P, Riou JF, Bugaut A. Binding properties of mono- and dimeric pyridine dicarboxamide ligands to human telomeric higher-order G-quadruplex structures.
Chem Commun (Camb) 2018;
54:1897-1900. [PMID:
29393312 DOI:
10.1039/c7cc07048a]
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Abstract
Here, we report on the in vitro binding properties of the known pyridine dicarboxamide G-quadruplex ligand 360A and a new dimeric analogue (360A)2A to human telomeric DNA higher-order G-quadruplex (G4) structures. This study points to original binding features never reported for G4 ligands, and reveals a greater efficiency for the dimeric ligand to displace RPA (a ssDNA binding protein involved in telomere replication) from telomeric DNA.
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