Topological solitons in an inhomogeneous DNA molecule
| Autor: | L. I. Manevich, A. V. Savin, V. M. Komarov, N. A. Kovaleva, A. V. Kabanov, Ludmila V. Yakushevich |
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| Rok vydání: | 2006 |
| Předmět: |
Physics
Quantitative Biology::Biomolecules Polymers and Plastics Thermal fluctuations Molecular models of DNA Topology Quantitative Biology::Genomics chemistry.chemical_compound Nonlinear Sciences::Exactly Solvable and Integrable Systems Rigidity (electromagnetism) chemistry Polynucleotide Materials Chemistry Molecule A-DNA Base sequence Nonlinear Sciences::Pattern Formation and Solitons DNA |
| Zdroj: | Polymer Science Series A. 48:278-293 |
| ISSN: | 1555-6107 0965-545X |
| DOI: | 10.1134/s0965545x06030096 |
| Popis: | The dynamics of topological solitons describing the opening of the double helix of a DNA molecule is studied. The estimated actual values of the rigidity of the polynucleotide chains made it possible to develop a more precise DNA model and to show that four types of topological solitons can appear in the DNA double helix. Interactions between solitons are studied, as well as their interaction with the chain inhomogeneities and the stability of solitons with respect to thermal fluctuations. Thermal fluctuations promote propagation of solitons along an inhomogeneous base sequence. |
| Databáze: | OpenAIRE |
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