Abstract
There is increasing evidence for polaronic effects on charge localization and dynamics inDNA. The Peyrard–Bishop–Holstein model has been previously suggested as anappropriate model for the description of such effects. Here we report a self-consistent studyof local electronic structure within this model for both homopolymer and realistic viral P5promoter segments. Our results indicate that both the inter-base-pair stacking interactionand the electron filling can qualitatively influence the polaronic properties in a specificDNA sequence, including features of two distinct length scales and competition withsequence-disorder induced localization.
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