Assessing the Differential Affinity of Small Molecules for Noncanonical DNA Structures

作者:Stefan Loic; Bertrand Benoit; Richard Philippe; Le Gendre Pierre; Denat Franck; Picquet Michel*; Monchaud David
来源:ChemBioChem, 2012, 13(13): 1905-1912.
DOI:10.1002/cbic.201200396

摘要

The targeting of higher-order DNA structures has been thoroughly developed with G-quadruplex DNA but not with other structures like branched DNA (also known as DNA junctions). Because these alternative higher-order DNA architectures might be of high biological relevance, we implemented a high-throughput version of the FRET melting assay that enabled us to map the interactions of a candidate with four different DNA structures (duplex- and quadruplex DNA, three- and four-way junctions) in a rapid and reliable manner. We also introduce a novel index, the BONDS (branched and other noncanonical DNA selectivity) index, to conveniently quantify this differential affinity.

  • 出版日期2012-9-3