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Electronic Transport in DNA

Name: Electronic Transport in DNA
Keywords: Models, Molecular, Genomics (q-bio.GN), Base Sequence, Molecular Sequence Data, Static Electricity, Biophysics, FOS: Physical sciences, Biomolecules (q-bio.BM), DNA, Sequence Analysis, DNA

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Oct 2005Embargo end date: 01 Jan 2005Publisher:Elsevier BVJournal:Biophysical Journal, volume 89, pages 2,187-2,198 (issn: 0006-3495,

Authors: Matthew S. Turner; Rudolf A. Römer; Daphne Klotsa;

doi: 10.1529/biophysj.105.064014 , 10.48550/arxiv.q-bio/0504004

pmid: 16040753

pmc: PMC1366722

arXiv: http://arxiv.org/abs/q-bio/0504004

Electronic Transport in DNA

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Abstract

We study the electronic properties of DNA by way of a tight-binding model applied to four particular DNA sequences. The charge transfer properties are presented in terms of localisation lengths, crudely speaking the length over which electrons travel. Various types of disorder, including random potentials, are employed to account for different real environments. We have performed calculations on poly(dG)-poly(dC), telomeric-DNA, random-ATGC DNA and lambda-DNA. We find that random and lambda-DNA have localisation lengths allowing for electron motion among a few dozen base pairs only. A novel enhancement of localisation lengths is observed at particular energies for an increasing binary backbone disorder. We comment on the possible biological relevance of sequence dependent charge transfer in DNA.

12 pages RevTeX4 with 17 figures, submitted to Biophysical Journal

Related Organizations

University of Warwick
United Kingdom

Keywords

Models, Molecular, Genomics (q-bio.GN), Base Sequence, Molecular Sequence Data, Static Electricity, Biophysics, FOS: Physical sciences, Biomolecules (q-bio.BM), DNA, Sequence Analysis, DNA, Condensed Matter - Soft Condensed Matter, Electron Transport, Structure-Activity Relationship, Quantitative Biology - Biomolecules, Models, Chemical, FOS: Biological sciences, Electrochemistry, Soft Condensed Matter (cond-mat.soft), Quantitative Biology - Genomics, Computer Simulation, QC

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	190
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 1%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%