Abstract
Z-DNAs are nucleic acid secondary structures that form within a special pattern of nucleotides and are promoted by DNA supercoiling. Through Z-DNA formation, DNA encodes information by dynamic changes in its secondary structure. A growing body of evidence indicates that Z-DNA formation can play a role in gene regulation; it can affect chromatin architecture and demonstrates its association with genomic instability, genetic diseases, and genome evolution. Many functional roles of Z-DNA are yet to be discovered highlighting the need for techniques to detect genome-wide folding of DNA into this structure. Here, we describe an approach to convert linear genome into supercoiled genome sponsoring Z-DNA formation. Applying permanganate-based methodology and high-throughput sequencing to supercoiled genome allows genome-wide detection of single-stranded DNA. Single-stranded DNA is characteristic of the junctions between the classical B-form of DNA and Z-DNA. Consequently, analysis of single-stranded DNA map provides snapshots of the Z-DNA conformation over the whole genome.
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Kouzine, F., Wojtowicz, D., Przytycka, T.M., Levens, D. (2023). Detection of Z-DNA Structures in Supercoiled Genome. In: Kim, K.K., Subramani, V.K. (eds) Z-DNA. Methods in Molecular Biology, vol 2651. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-3084-6_13
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DOI: https://doi.org/10.1007/978-1-0716-3084-6_13
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