Numerous essential biomolecular processes require the recognition of DNA surface features by proteins. Molecules mimicking these features could potentially act as decoys and interfere with pharmacologically or therapeutically relevant protein-DNA interactions. Although naturally occurring DNA-mimicking proteins have been described, synthetic tunable molecules that mimic the charge surface of double-stranded DNA are not known. Here, we report the design, synthesis and structural characterization of aromatic oligoamides that fold into single helical conformations and display a double helical array of negatively charged residues in positions that match the phosphate moieties in B-DNA. These molecules were able to inhibit several enzymes possessing non-sequence-selective DNA-binding properties, including topoisomerase 1 and HIV-1 integrase, presumably through specific foldamer-protein interactions, whereas sequence-selective enzymes were not inhibited. Such modular and synthetically accessible DNA mimics provide a versatile platform to design novel inhibitors of protein-DNA interactions.< Réduire

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DNA-binding proteins

Nucleic acids

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Single helically folded aromatic oligoamides that mimic the charge surface of double-stranded B-DNA

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Single helically folded aromatic oligoamides that mimic the charge surface of double-stranded B-DNA

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Lien vers les données de la recherche

Unités de recherche