Abstract
In recent years, it has been shown that Z-DNA formation in DNA plays functionally significant roles in nucleic acid metabolism, such as gene expression, chromosome recombination, and epigenetic regulation. The reason for the identification of these effects is mainly due to the advancement of Z-DNA detection methods in target genome regions in living cells.
The heme oxygenase-1 (HO-1) gene encodes an enzyme that degrades an essential prosthetic heme, and environmental stimuli, including oxidative stress, lead to robust induction of the HO-1 gene. Many DNA elements and transcription factors are involved in the induction of the HO-1 gene, and Z-DNA formation in the thymine–guanine (TG) repetitive sequence in the human HO-1 gene promoter region is required for maximum gene induction.
Here, we describe a detailed protocol for Z-DNA detection in the human HO-1 gene promoter region based on chromatin immunoprecipitation with quantitative PCR. We also provide some control experiments to consider in routine lab procedures.
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This work was supported by a Nihon Pharmaceutical University Research Grant to A.I.M.
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Inose-Maruyama, A., Kasai, S., Itoh, K. (2023). Human Heme Oxygenase-1 Promoter Activity Is Mediated by Z-DNA Formation. 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_11
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DOI: https://doi.org/10.1007/978-1-0716-3084-6_11
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