On the long-range charge transfer in DNA

Yuri A. Berlin*, Alexander L. Burin, Mark A. Ratner

*Corresponding author for this work

Research output: Contribution to journalArticle

140 Scopus citations

Abstract

The sequence dependence of charge transport through stacked Watson-Crick base pairs was analyzed for coherent hole motion interrupted by a temporary charge localization on guanine bases. The relative rate of hole transfer to the GGG sequence has been expressed in terms of the frequency of jumps through adenine-thymine base pairs separating adjacent guanine sites. The obtained expression yields practically the same sequence dependence as measurements, without invoking adjustable parameters. For alternating adenine-thymine/guanine-cytosine sequences, our analysis predicts that the relative charge-transfer rate varies in inverse proportion to the sequence length at short distances, with change to the slow exponential decay at longer distances.

Original languageEnglish (US)
Pages (from-to)444-445
Number of pages2
JournalJournal of Physical Chemistry A
Volume104
Issue number3
StatePublished - Jan 27 2000

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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