Artículo
Does the dynamics of sine–Gordon solitons predict active regions of DNA?
Autor/es | Cuenda, Sara
Sánchez, Angel Quintero, Niurka R. |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada I |
Fecha de publicación | 2006 |
Fecha de depósito | 2016-06-20 |
Publicado en |
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Resumen | In this work we analyze the possibility that the soliton dynamics in a simple nonlinear model allows functionally relevant predictions of the
behaviour of DNA. This suggestion was first put forward by Salerno [M. Salerno, ... In this work we analyze the possibility that the soliton dynamics in a simple nonlinear model allows functionally relevant predictions of the behaviour of DNA. This suggestion was first put forward by Salerno [M. Salerno, Phys. Rev. A 44 (1991) 5292] by showing results indicating that sine–Gordon kinks were set in motion at certain regions of a DNA sequence that include promoters. We revisit that system and show that the observed behaviour has nothing to do with promoters; on the contrary, it originates from the bases at the boundary, which are not part of the genome studied. We explain this phenomenology in terms of an effective potential for the kink center. This is further extended to disprove recent claims that the dynamics of kinks [E. Lennholm, M. H¨ornquist, Physica D 177 (2003) 233] or breathers [J.D. Bashford, J. Biol. Phys. 32 (2006) 27] has functional significance.We conclude that no such information can be extracted from this simple nonlinear model or its associated effective potential. |
Identificador del proyecto | Ministerio de Educación y Ciencia BFM2003-07749- C05-01
Ministerio de Educación y Ciencia FIS2004-01001 Ministerio de Educación y Ciencia NAN2004-09087-C03-03 Ministerio de Educación y Ciencia FIS2005- 973 Comunidad de Madrid SIMUMAT-CM Junta de Andalucía Projects 00481 Junta de Andalucía FQM-0207. S.C. Consejería de Educación de la Comunidad de Madrid fellowship Fondo Social Europeo |
Cita | Cuenda, S., Sánchez, A. y Quintero, N.R. (2006). Does the dynamics of sine–Gordon solitons predict active regions of DNA?. Physica D: Nonlinear Phenomena, 223 (2), 214-221. |
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