Abstract
To execute their diverse range of biological functions, RNA molecules must fold into specific tertiary structures and/or associate with one or more proteins to form ribonucleoprotein (RNP) complexes. Single-molecule fluorescence spectroscopy is a powerful tool for the study of RNA folding and RNP assembly processes, directly revealing different conformational subpopulations that are hidden in conventional ensemble measurements. Moreover, kinetic processes can be observed without the need to synchronize a population of molecules. In this chapter, we describe the fluorescence spectroscopic methods used for single-molecule measurements of freely diffusing or immobilized RNA molecules or RNA–protein complexes. We also provide practical protocols to prepare the fluorescently labeled RNA and protein molecules required for such studies. Finally, we provide two examples of how these various preparative and spectroscopic methods are employed in the study of RNA folding and RNP assembly processes.
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Acknowledgments
Work in the author’s laboratory was supported by NIH grants RO1 GM058873 and P50 GM082545.
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Pljevaljčić, G., Robertson-Anderson, R., van der Schans, E., Millar, D. (2012). Analysis of RNA Folding and Ribonucleoprotein Assembly by Single-Molecule Fluorescence Spectroscopy. In: Bujalowski, W. (eds) Spectroscopic Methods of Analysis. Methods in Molecular Biology, vol 875. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-61779-806-1_15
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DOI: https://doi.org/10.1007/978-1-61779-806-1_15
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