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Protein-DNA Interaction: Effect of Helicity on Bubble Size

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We study the nonlinear dynamics of the DNA double helical chain using a DNA-protein interaction spin-like model. The presence of helicity is taken into account and the dynamical equations are reduced to the completely integrable nonlinear Schrödinger equation. Helicity is shown to bring about highly localized and extended bubbles in the model. It is argued that these bubbles can be used to explain the open-states in DNA, under the action of RNA-polymerase, within the process of transcription.
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Keywords: BUBBLES; DNA DYNAMICS; HELICITY

Document Type: Research Article

Publication date: November 1, 2011

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  • Journal of Computational and Theoretical Nanoscience is an international peer-reviewed journal with a wide-ranging coverage, consolidates research activities in all aspects of computational and theoretical nanoscience into a single reference source. This journal offers scientists and engineers peer-reviewed research papers in all aspects of computational and theoretical nanoscience and nanotechnology in chemistry, physics, materials science, engineering and biology to publish original full papers and timely state-of-the-art reviews and short communications encompassing the fundamental and applied research.
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