Netropsin is an unusual n-methylpyrrole-containing oligopeptide that binds to AT-rich sequences of dsDNA, especially in the minor groove. Thus, it protects such regions from DNase I and other endonucleases, and also inhibits topoisomerases. Netropsin disrupts the cell cycle, prolonging G and arresting in G.
Chembiochem : a European journal of chemical biology, 14(3), 323-331 (2013-01-29)
With a growing understanding of the microstructural variations of DNA, it has become apparent that subtle conformational features are essential for specific DNA molecular recognition and function. DNA containing an A-tract has a narrow minor groove and a globally bent
A furan amino acid, inspired by the recently discovered proximicin natural products, was incorporated into the scaffold of a DNA-binding hairpin polyamide. While unpaired oligomers of 2,4-disubstituted furan amino acids show poor DNA-binding activity, furan (Fn) carboxamides paired with N-methylpyrrole
Journal of computational chemistry, 33(6), 640-651 (2012-01-10)
The performance of enveloping distribution sampling (EDS) simulations to estimate free enthalpy differences associated with seven alchemical transformations of A-T into G-C base pairs at the netropsin binding site in the minor groove of a 13-base pair DNA duplex in
We use a variety of biophysical techniques to determine thermodynamic profiles, including hydration, for the unfolding of DNA stem-loop motifs (hairpin, a three-way junction and a pseudoknot) and their interaction with netropsin and random cationic copolymers. The unfolding thermodynamic data
The specific DNA binding ligand netropsin selectively blocks dA-dT base pairs in clusters containing two or more consecutive thymine residues at the dNAase I cleavage sites of DNA. Using CD and UV absorption measurements it is shown, that at various
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