Related Experiment Video
Updated: Aug 8, 2026

Single Molecule Analysis of Laser Localized Psoralen Adducts
Published on: April 20, 2017
Low-energy electron scattering from DNA and RNA bases: shape resonances and radiation damage
Stefano Tonzani1, Chris H Greene
1JILA and Department of Chemistry, University of Colorado, Boulder, Colorado 80309-0440, USA. tonzani@colorado.edu
Abstract:
Calculations are carried out to determine elastic-scattering cross sections and resonance energies for low-energy electron impact on uracil and on each of the DNA bases (thymine, cytosine, adenine, and guanine), for isolated molecules in their equilibrium geometry. Our calculations are compared with the available theory and experiment. We also attempt to correlate this information with experimental dissociation patterns through an analysis of the temporary anion structures that are formed by electron capture in shape resonances.
More Related Videos
12:43Advanced Confocal Microscopy Techniques to Study Protein-protein Interactions and Kinetics at DNA Lesions
Published on: November 12, 2017
12:15Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter
Published on: May 29, 2019
Related Concept Videos
Nucleotide Excision Repair
Overview of DNA Repair
Chemically...
Nucleotide Excision Repair
Mutations
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Nucleotide Excision Repair
Cells are regularly exposed to mutagens—factors in the environment that can damage DNA and generate mutations. UV radiation is one of the most common mutagens and is estimated to introduce a significant number of changes in DNA. These include bends or kinks in the structure, which can block DNA replication or transcription. If these errors are not fixed, the damage can cause mutations, which in turn can result in cancer or disease depending on which sequences are...
Spontaneous and Induced Mutations