Abstract
Circular dichroism (CD) spectroscopy is a fast and simple technique providing important information about the conformation of nucleic acids, proteins, sugars, lipids, and their interactions between each other. This electronic absorption spectroscopy method is extremely sensitive to any change in molecular structure containing asymmetric molecules. While numerous reviews describe how to analyze deoxyribonucleic acid (DNA) structures using CD, analyses of ribonucleic acids (RNAs) are scarce. Nevertheless, RNAs are important molecules involved in a multitude of roles in the cell. In this chapter, we present applications of synchrotron radiation circular dichroism (SRCD) extending the spectral range down to 170nm, improving structural analysis of RNA, including the analysis of helical parameters and alternative structures found in RNA. The effects of temperature to measure thermodynamic parameters and analyze ribonucleoprotein complexes will also be presented.
Published Version
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