ArticleNew journal of physics2013
Solution conformation of 2-aminopurine (2-AP) dinucleotide determined by ultraviolet 2D fluorescence spectroscopy (UV-2D FS).
Article in New journal of physics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed, 60 citations in OpenAlex.
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- Local DNA Base Conformations and Ligand Intercalation in DNA Constructs Containing Optical Probes.Biophysical journal · 2019Article
- Measuring local conformations and conformational disorder of (Cy3)Faraday discussions · 2019Article
- Coherent two-dimensional electronic mass spectrometry.Nature communications · 2018Article
- Temperature-dependent conformations of exciton-coupled Cy3 dimers in double-stranded DNA.The Journal of chemical physics · 2018Article
- Recent advances in multidimensional ultrafast spectroscopy.Royal Society open science · 2018Review
- Surprising Conformers of the Biologically Important A·T DNA Base Pairs: QM/QTAIM Proofs.Frontiers in chemistry · 2018Article
- Ultrafast Spectroscopy with Photocurrent Detection: Watching Excitonic Optoelectronic Systems at Work.The journal of physical chemistry letters · 2016Article
- Electric Dipole Transition Moments and Solvent-Dependent Interactions of Fluorescent Boron-Nitrogen Substituted Indole Derivatives.The journal of physical chemistry. B · 2015Article
- Fluorescence2D: software for accelerated acquisition and analysis of two-dimensional fluorescence spectra.PloS one · 2014Article
- Fifty years of DNA "breathing": Reflections on old and new approaches.Biopolymers · 2013Review
- Temperature-dependent conformations of a membrane supported zinc porphyrin tweezer by 2D fluorescence spectroscopy.The journal of physical chemistry. A · 2013Article
- Monitoring Non-Adiabatic Dynamics of the RNA Base Uracil by UV-Pump-IR-Probe Spectroscopy.The journal of physical chemistry letters · 2013Article
- Two-photon excitation two-dimensional fluorescence spectroscopy (2PE-2DFS) of the fluorescent nucleobase 6-MI.Proceedings of SPIE--the International Society for Optical EngineeringArticle
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
We have observed the conformation-dependent electronic coupling between the monomeric subunits of a dinucleotide of 2-aminopurine (2-AP), a fluorescent analog of the nucleic acid base adenine. This was accomplished by extending two-dimensional fluorescence spectroscopy (2D FS) - a fluorescence-detected variation of 2D electronic spectroscopy - to excite molecular transitions in the ultraviolet (UV) regime. A collinear sequence of four ultrafast laser pulses centered at 323 nm was used to resonantly excite the coupled transitions of 2-AP dinucleotide. The phases of the optical pulses were continuously swept at kilohertz frequencies, and the ensuing nonlinear fluorescence was phase-synchronously detected at 370 nm. Upon optimization of a point-dipole coupling model to our data, we found that in aqueous buffer the 2-AP dinucleotide adopts an average conformation in which the purine bases are non-helically stacked (center-to-center distance
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