Dr Aakash Basu aakash.basu@durham.ac.uk
Assistant Professor
Deciphering the Mechanical code of the genome and epigenome
Basu, Aakash; Bobrovnikov, Dmitriy G.; Cieza, Basilio; Arcon, Juan Pablo ; Orozco, Modesto; Ha, Taekjip
Authors
Dmitriy G. Bobrovnikov
Basilio Cieza
Juan Pablo Arcon
Modesto Orozco
Taekjip Ha
Abstract
Diverse DNA-deforming processes are impacted by the local mechanical and structural properties of DNA, which in turn depend on local sequence and epigenetic modifications. Deciphering this mechanical code (that is, this dependence) has been challenging due to the lack of high-throughput experimental methods. Here we present a comprehensive characterization of the mechanical code. Utilizing high-throughput measurements of DNA bendability via loop-seq, we quantitatively established how the occurrence and spatial distribution of dinucleotides, tetranucleotides and methylated CpG impact DNA bendability. We used our measurements to develop a physical model for the sequence and methylation dependence of DNA bendability. We validated the model by performing loop-seq on mouse genomic sequences around transcription start sites and CTCF-binding sites. We applied our model to test the predictions of all-atom molecular dynamics simulations and to demonstrate that sequence and epigenetic modifications can mechanically encode regulatory information in diverse contexts.
Citation
Basu, A., Bobrovnikov, D. G., Cieza, B., Arcon, J. P., Orozco, M., & Ha, T. (2022). Deciphering the Mechanical code of the genome and epigenome. Nature Structural and Molecular Biology, 29, 1178-1187. https://doi.org/10.1101/2020.08.22.262352
Journal Article Type | Article |
---|---|
Acceptance Date | Oct 18, 2022 |
Online Publication Date | Dec 5, 2022 |
Publication Date | Dec 5, 2022 |
Deposit Date | Jul 12, 2022 |
Publicly Available Date | Jun 6, 2023 |
Journal | Nature Structural and Molecular Biology |
Print ISSN | 1545-9993 |
Electronic ISSN | 1545-9985 |
Publisher | Nature Research |
Peer Reviewed | Peer Reviewed |
Volume | 29 |
Pages | 1178-1187 |
DOI | https://doi.org/10.1101/2020.08.22.262352 |
Public URL | https://durham-repository.worktribe.com/output/1200553 |
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Copyright Statement
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1101/2020.08.22.262352
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