Environmental Fluctuations Facilitate Electron-Hole Transfer from Guanine to Adenine in DNA φ Stacks

Alexander A. Voityuk, Khatcharin Siriwong, Notker Rösch

Research output: Contribution to journalArticlepeer-review

119 Scopus citations

Abstract

The relative energies of radical cation states on nucleobases in DNA are considerably affected by the local distribution of water molecules and counterions. In fact, fluctuations of ΔG are large enough to render electron-hole transfer from G+ to A energetically feasible, thus allowing a changeover from the generally accepted G-hopping mechanism to A-hopping (see picture).

Original languageEnglish
Pages (from-to)624-627
Number of pages4
JournalAngewandte Chemie International Edition in English
Volume43
Issue number5
DOIs
StatePublished - 23 Jan 2004

Keywords

  • Charge transfer
  • DNA
  • Electron holes
  • Quantum mechanical calculations

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