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The separation between the 5′-3′ ends in long RNA molecules is short and nearly constant

dc.contributor.authorLeija Martínez, Nehemías
dc.contributor.authorCasas Flores, J. Sergio
dc.contributor.authorCadena Nava, Rubén Darío
dc.contributor.authorRoca, Joan A.
dc.contributor.authorMéndez Cabañas, J. Alfredo
dc.contributor.authorGomez, Eduardo
dc.contributor.authorRuiz García, Jaime
dc.contributor.editorOxford University Press
dc.identifier.citationNehemías Leija-Martínez, Sergio Casas-Flores, Rubén D. Cadena-Nava, Joan A. Roca, José A. Mendez-Cabañas, Eduardo Gomez, Jaime Ruiz-Garcia; The separation between the 5′-3′ ends in long RNA molecules is short and nearly constant, Nucleic Acids Research, Volume 42, Issue 22, 16 December 2014, Pages 13963–13968,
dc.description.abstract"RNA molecules play different roles in coding, decoding and gene expression regulation. Such roles are often associated to the RNA secondary or tertiary structures. The folding dynamics lead to multiple secondary structures of long RNA molecules, since an RNA molecule might fold into multiple distinct native states. Despite an ensemble of different structures, it has been theoretically proposed that the separation between the 5 ' and 3 ' ends of long single-stranded RNA molecules (ssRNA) remains constant, independent of their base content and length. Here, we present the first experimental measurements of the end-to-end separation in long ssRNA molecules. To determine this separation, we use single molecule Fluorescence Resonance Energy Transfer of fluorescently end-labeled ssRNA molecules ranging from 500 to 5500 nucleotides in length, obtained from two viruses and a fungus. We found that the end-to-end separation is indeed short, within 5-9 nm. It is remarkable that the separation of the ends of all RNA molecules studied remains small and similar, despite the origin, length and differences in their secondary structure. This implies that the ssRNA molecules are 'effectively circularized' something that might be a general feature of RNAs, and could result in finetuning for translation and gene expression regulation."
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.subject.classificationBIOLOGÍA MOLECULAR
dc.titleThe separation between the 5′-3′ ends in long RNA molecules is short and nearly constant
dc.rights.accessAcceso Abierto

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