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dc.contributor.authorRue Queralt, Pau
dc.contributor.authorSüel, Gürol M.
dc.contributor.authorGarcía Ojalvo, Jordi
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear
dc.identifier.citationRue, P.; Süel, G.; Garcia-Ojalvo, J. Optimizing periodicity and polymodality in noise-induced genetic oscillators. "Physical review E: statistical, nonlinear, and soft matter physics", 2011, vol. 83, núm. 6, p. 1-8.
dc.description.abstractMany cellular functions are based on the rhythmic organization of biological processes into self-repeating cascades of events. Some of these periodic processes, such as the cell cycles of several species, exhibit conspicuous irregularities in the form of period skippings, which lead to polymodal distributions of cycle lengths. A recently proposed mechanism that accounts for this quantized behavior is the stabilization of a Hopf-unstable state by molecular noise. Here we investigate the effect of varying noise in a model system, namely an excitable activator-repressor genetic circuit, that displays this noise-induced stabilization effect. Our results show that an optimal noise level enhances the regularity (coherence) of the cycles, in a form of coherence resonance. Similar noise levels also optimize the multimodal nature of the cycle lengths. Together, these results illustrate how molecular noise within a minimal gene regulatory motif confers robust generation of polymodal patterns of periodicity.
dc.format.extent8 p.
dc.subjectÀrees temàtiques de la UPC::Informàtica::Aplicacions de la informàtica::Bioinformàtica
dc.subject.lcshGenetic oscillators
dc.titleOptimizing periodicity and polymodality in noise-induced genetic oscillators
dc.contributor.groupUniversitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
upcommons.citation.authorRue, P.; Süel, G.; Garcia-Ojalvo, J.
upcommons.citation.publicationNamePhysical review E: statistical, nonlinear, and soft matter physics

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