G-quadruplexes formed by nucleic acids are implicated in pathologies ranging from cancers to neurodegenerative diseases. We evaluated interactions of 29 bi- and terpyridine derivatives with G-quadruplexes and duplexes. FRET-melting, circular dichroism, and (1) H NMR spectroscopy showed that one terpyridine derivative interacted very selectively with G-quadruplexes. This G-quadruplex ligand inhibited helicase activity and should influence G-quadruplex-related biological processes.
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| http://dx.doi.org/10.1002/chem.201603021 | DOI Listing |
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