Multilevel Deconstruction of the In Vivo Behavior of Looped DNA-Protein Complexes

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dc.creatorSaiz, Leonor
dc.creatorVilar, Jose M. G.
dc.date2007-04-18
dc.date.accessioned2026-07-07T07:57:05Z
dc.date.available2026-07-07T07:57:05Z
dc.descriptionProtein-DNA complexes with loops play a fundamental role in a wide variety of cellular processes, ranging from the regulation of DNA transcription to telomere maintenance. As ubiquitous as they are, their precise in vivo properties and their integration into the cellular function still remain largely unexplored. Here, we present a multilevel approach that efficiently connects in both directions molecular properties with cell physiology and use it to characterize the molecular properties of the looped DNA-lac repressor complex while functioning in vivo. The properties we uncover include the presence of two representative conformations of the complex, the stabilization of one conformation by DNA architectural proteins, and precise values of the underlying twisting elastic constants and bending free energies. Incorporation of all this molecular information into gene-regulation models reveals an unprecedented versatility of looped DNA-protein complexes at shaping the properties of gene expression.
dc.descriptionOpen Access article available at http://www.plosone.org/article/fetchArticle.action?articleURI=info%3Adoi%2F10.1371%2Fjournal.pone.0000355
dc.identifierhttps://arxiv.org/abs/0704.2409
dc.identifierhttp://arxiv.org/abs/0704.2409
dc.identifierPLoS ONE 2(4): e355 (2007)
dc.identifierdoi:10.1371/journal.pone.0000355
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/127553
dc.subjectBiomolecules
dc.subjectSubcellular Processes
dc.titleMultilevel Deconstruction of the In Vivo Behavior of Looped DNA-Protein Complexes
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