Title: Stability Prediction of Canonical and Noncanonical Structures of Nucleic Acids
Abstract: The folding and unfolding of nucleic acids (DNA and RNA) is essential for cellular functions. These structural changes in nucleic acids are also widely used in various technical applications using nucleic acids. Thermodynamics for the structural changes is highly useful and important for understanding the biological mechanism of nucleic acid function, as well as for the design of materials for nucleic acids. The canonical structure of nucleic acids is a duplex comprising of Watson-Crick base pairs. As the thermodynamic properties of nucleic acid structures depend on the chemical interactions between nucleotides in the strands, the stability of the duplex can be determined by the sequence, which indicates that stability is predictable. In fact, the stability prediction of nucleic acid duplexes has been developed and widely used. However, such predictions cannot always be adopted in various solution conditions, especially cellular conditions, as the concentrations of cations and co-solutes in the intracellular condition, termed molecular crowding, vary from those under standard experimental conditions. In addition, the crowding conditions in cells are spatiotemporally variable. Furthermore, there are noncanonical structures that are different from duplexes, such as triplexes and tetraplexes. Therefore, there is a need for a method to predict the stability of various nucleic acid structures under cellular conditions. This chapter guides readers through the study of the physicochemical basis for predicting nucleic acid stability and discusses recent studies on the prediction of stability in cellular conditions.
Publication Year: 2022
Publication Date: 2022-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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