TY - JOUR A1 - Marshall, Paul R. A1 - Davies, Joshua A1 - Zhao, Qiongyi A1 - Liau, Wei-Siang A1 - Lee, Yujin A1 - Basic, Dean A1 - Periyakaruppiah, Ambika A1 - Zajaczkowski, Esmi L. A1 - Leighton, Laura J. A1 - Madugalle, Sachithrani U. A1 - Musgrove, Mason A1 - Kielar, Marcin A1 - Brueckner, Arie Maeve A1 - Gong, Hao A1 - Ren, Haobin A1 - Walsh, Alexander A1 - Kaczmarczyk, Lech A1 - Jackson, Walker S. A1 - Chen, Alon A1 - Spitale, Robert C. A1 - Bredy, Timothy W. T1 - DNA G-Quadruplex Is a Transcriptional Control Device That Regulates Memory Y1 - 2024/04/10 JF - The Journal of Neuroscience JO - The Journal of Neuroscience DO - 10.1523/JNEUROSCI.0093-23.2024 VL - 44 IS - 15 UR - http://www.jneurosci.org/content/44/15/e0093232024.abstract N2 - The conformational state of DNA fine-tunes the transcriptional rate and abundance of RNA. Here, we report that G-quadruplex DNA (G4-DNA) accumulates in neurons, in an experience-dependent manner, and that this is required for the transient silencing and activation of genes that are critically involved in learning and memory in male C57/BL6 mice. In addition, site-specific resolution of G4-DNA by dCas9-mediated deposition of the helicase DHX36 impairs fear extinction memory. Dynamic DNA structure states therefore represent a key molecular mechanism underlying memory consolidation.One-Sentence Summary: G4-DNA is a molecular switch that enables the temporal regulation of the gene expression underlying the formation of fear extinction memory. ER -