ArticleAngewandte Chemie (International ed. in English)2022
Tuning Exciton Coupling of Merocyanine Nucleoside Dimers by RNA, DNA and GNA Double Helix Conformations.
Article in Angewandte Chemie (International ed. in English), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 25 citations in OpenAlex.
- Exo-chirality of the α-helix.Nature communications · 2024Article
- A comparative analysis of peptide-delivered antisense antibiotics using diverse nucleotide mimics.RNA (New York, N.Y.) · 2024Article
- A Prebiotic Genetic Nucleotide as an Early Darwinian Ancestor for Pre-RNA Evolution.ACS omega · 2024Article
- Exciton delocalization in a fully synthetic DNA-templated bacteriochlorin dimer.Physical chemistry chemical physics : PCCP · 2023Article
- Electronic Structure and Excited-State Dynamics of DNA-Templated Monomers and Aggregates of Asymmetric Polymethine Dyes.The journal of physical chemistry. A · 2023Article
- RNA Probes for Visualization of Sarcin/ricin Loop Depurination without Background Fluorescence.Chemistry, an Asian journal · 2022Article
- Cyanine Dye Coupling Mediates Self-assembly of a pH Sensitive Peptide into Novel 3D Architectures.Angewandte Chemie (International ed. in English) · 2022Article
- Article
- Photocrosslinking Probes Proximity of Thymine Modifiers Tethering Excitonically Coupled Dye Aggregates to DNA Holliday Junction.Molecules (Basel, Switzerland) · 2022Article
- Tuning Exciton Coupling of Merocyanine Nucleoside Dimers by RNA, DNA and GNA Double Helix Conformations.Angewandte Chemie (International ed. in English) · 2022Article
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5 authors at 1 institution in 1 country.
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Abstract
Exciton coupling between two or more chromophores in a specific environment is a key mechanism associated with color tuning and modulation of absorption energies. This concept is well exemplified by natural photosynthetic proteins, and can also be achieved in synthetic nucleic acid nanostructures. Here we report the coupling of barbituric acid merocyanine (BAM) nucleoside analogues and show that exciton coupling can be tuned by the double helix conformation. BAM is a nucleobase mimic that was incorporated in the phosphodiester backbone of RNA, DNA and GNA oligonucleotides. Duplexes with different backbone constitutions and geometries afforded different mutual dye arrangements, leading to distinct optical signatures due to competing modes of chromophore organization via electrostatic, dipolar, π-π-stacking and hydrogen-bonding interactions. The realized supramolecular motifs include hydrogen-bonded BAM-adenine base pairs and antiparallel as well as rotationally stacked BAM dimer aggregates with distinct absorption, CD and fluorescence properties.
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