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Updated: Jul 12, 2026

Analyzing and Building Nucleic Acid Structures with 3DNA
Published on: April 26, 2013
Interaction of low-energy electrons with the pyrimidine bases and nucleosides of DNA
Carl Winstead1, Vincent McKoy, Sergio d'Almeida Sanchez
1A. A. Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, USA.
Abstract:
We report computed cross sections for the elastic scattering of slow electrons by the pyrimidine bases of DNA, thymine and cytosine, and by the associated nucleosides, deoxythymidine and deoxycytidine. For the isolated bases, we carried out calculations both with and without the inclusion of polarization effects. For the nucleosides, we neglect polarization effects but estimate their influence on resonance positions by comparison with the results for the corresponding bases. Where possible, we compare our results with experiment and previous calculations.
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