| Literature DB >> 17036123 |
Diana P N Gonçalves1, Sylvain Ladame, Shankar Balasubramanian, Jeremy K M Sanders.
Abstract
A series of cationic porphyrins carrying 1-3 meso-N-pyridinium groups has been synthesised, and their binding to G-quadruplex DNA has been explored by surface plasmon resonance (SPR) and circular dichroism spectroscopy. Two trans substituents appear to be sufficient for tight binding; preferential binding to the anti-parallel intramolecular human telomeric DNA was observed for the A2trans and A3 porphyrins. The A2trans is able to induce the formation of an anti-parallel G-quadruplex in a K+ free solution, mimicking the effect of a molecular chaperone.Entities:
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Year: 2006 PMID: 17036123 PMCID: PMC2195891 DOI: 10.1039/b608494j
Source DB: PubMed Journal: Org Biomol Chem ISSN: 1477-0520 Impact factor: 3.876