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Metal ion induced heterogeneity in RNA folding studied by smFRET


Börner, Richard; Kowerko, Danny; Guiset Miserachs, Helena; Schaffer, Michelle F; Sigel, Roland K O (2016). Metal ion induced heterogeneity in RNA folding studied by smFRET. Coordination Chemistry Reviews, 327-328:123-142.

Abstract

More than two decades of investigating nucleic acids and ribonucleic acids (RNA) using single molecule Förster resonance energy transfer (smFRET) have passed. It turned out that sample heterogeneity in structure and function of RNA molecules as well as folding intermediates, kinetic subpopulations, and interconversion rates of conformational states of RNA biomolecules, all of which are usually hidden in ensemble type experiments, are often observed characteristics. Besides proteins, metal ions play a crucial role in RNA folding and dynamics, as well as RNA/RNA or RNA/DNA interactions. RNA molecules form discrete conformational intermediates before reaching the native three-dimensional fold, whereby metal ions guide the folding pathway by changing the energetic barriers between local and global minima in the energy landscape. Here we review recent advances in the characterization of the role of metal ions in folding and function of nucleic acid structures by means of smFRET. Subsequently, the workflow of smFRET data analysis is described and exemplified by the metal ion-depending folding and dynamics of the group IIB intron from Saccharomyces cerevisiae and RNA–RNA binding kinetics of this ribozyme's 5'-splice site formation.

Abstract

More than two decades of investigating nucleic acids and ribonucleic acids (RNA) using single molecule Förster resonance energy transfer (smFRET) have passed. It turned out that sample heterogeneity in structure and function of RNA molecules as well as folding intermediates, kinetic subpopulations, and interconversion rates of conformational states of RNA biomolecules, all of which are usually hidden in ensemble type experiments, are often observed characteristics. Besides proteins, metal ions play a crucial role in RNA folding and dynamics, as well as RNA/RNA or RNA/DNA interactions. RNA molecules form discrete conformational intermediates before reaching the native three-dimensional fold, whereby metal ions guide the folding pathway by changing the energetic barriers between local and global minima in the energy landscape. Here we review recent advances in the characterization of the role of metal ions in folding and function of nucleic acid structures by means of smFRET. Subsequently, the workflow of smFRET data analysis is described and exemplified by the metal ion-depending folding and dynamics of the group IIB intron from Saccharomyces cerevisiae and RNA–RNA binding kinetics of this ribozyme's 5'-splice site formation.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Language:English
Date:2016
Deposited On:24 Oct 2016 14:46
Last Modified:29 May 2017 07:25
Publisher:Elsevier
ISSN:0010-8545
Publisher DOI:https://doi.org/10.1016/j.ccr.2016.06.002

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