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Adenine recognition through triplex-like interactions was explored using clamp-shaped artificial receptor , bearing two uracil units and an extended naphthalene scaffold. The requisite binding mode was confirmed for 9-ethyladenine in CDCl via NMR investigations. Phase-transfer experiments demonstrated that selectively binds adenosine from an aqueous mixture of four ribonucleosides.
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http://dx.doi.org/10.1021/acs.joc.5c01309 | DOI Listing |
J Org Chem
September 2025
Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17 A, 43124 Parma, Italy.
Adenine recognition through triplex-like interactions was explored using clamp-shaped artificial receptor , bearing two uracil units and an extended naphthalene scaffold. The requisite binding mode was confirmed for 9-ethyladenine in CDCl via NMR investigations. Phase-transfer experiments demonstrated that selectively binds adenosine from an aqueous mixture of four ribonucleosides.
View Article and Find Full Text PDFNucleic Acids Res
June 2024
Institute of Bioorganic Chemistry, Polish Academy of Sciences, Z. Noskowskiego 12/14, 61-704, Poland.
The abnormal expansion of GGGGCC/GGCCCC hexanucleotide repeats (HR) in C9orf72 is associated with amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Structural polymorphisms of HR result in the multifactorial pathomechanism of ALS/FTD. Consequently, many ongoing studies are focused at developing therapies targeting pathogenic HR RNA.
View Article and Find Full Text PDFNucleic Acids Res
December 2001
Charles University, Institute of Physics, Ke Karlovu 5, CZ-121 16 Praha 2, Czech Republic.
The complete family of ApA phosphonate analogues with the internucleotide linkage elongated by insertion of a -CH2- group was prepared and the hybridisation and structural properties of its members in interaction with polyuridylic acid were investigated using an original 2D Raman approach. Except for the conformationally restricted A(CH)pA(2'3'endo-5') modification, all of the isopolar, non-isosteric analogues form triplex-like complexes with poly(rU) at room temperature, in which two polymer strands are bound by Watson-Crick and Hoogsteen bonds to a central pseudostrand consisting of a 'chain' of A-dimers. For all of these dimers, the overall conformation of the triplexes was found to be similar according to their extracted Raman spectra.
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