Epigenetics and Chromosome Biology

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Molecular Genetics and Genomics".

Deadline for manuscript submissions: closed (1 September 2020) | Viewed by 5364

Special Issue Editors


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Guest Editor
National Cancer Institute, Bethesda, MD, USA
Interests: transcription; chromatin; DNA topology and conformation; MYC

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Guest Editor
Center for Cancer Research, National Cancer Institute, Building 10, Room 2N105, Bethesda, MD, USA
Interests: transcriptional regulation; RNA pol II pausing; O-GlcNAcylation; MYC

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Guest Editor
Center for Cancer Research, National Cancer Institute, Building 10, Room 2N105, Bethesda, MD 20892, USA
Interests: epigenetics and nuclear architecture; DNA topology and topoisomerases; gene expression

Special Issue Information

Dear Colleagues,

Besides conducting their fundamental in vivo actions, transcription, replication, and DNA repair must contend with the chromatin environment.  This environment likely consists of several different scales of regulation and organization and includes the primary packaging of DNA into chromatin and associated histone post-translational modifications. The plethora of histone covalent modifications and the enzymes that place or remove them have deep impacts on the biology and pathology of virtually all eukaryotes. Besides directly governing classical intermolecular recognition, the stereochemical arrangement and chemical state of nucleosomes may contribute to the folding and spatial partitioning of genes and chromosomal segments, subject to the physics of the transmission of force and torque through DNA and chromatin and to the physical chemical constraints of phase separations within the nucleus while also accommodating the biochemical events surrounding transcription, DNA replication, and DNA repair. It is this imposition of multiple, independent layers of regulation and organization on gene regulation, repair, and replication that confers robustness and plasticity to these events.

Prof. David L. Levens
Dr. Brian A. Lewis
Dr. Fedor Kouzine
Guest Editors

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Keywords

  • transcription
  • chromatin
  • DNA topology and conformation
  • epigenetics and nuclear architecture
  • MYC

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Published Papers (1 paper)

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Review

19 pages, 3166 KiB  
Review
DNMTs and Impact of CpG Content, Transcription Factors, Consensus Motifs, lncRNAs, and Histone Marks on DNA Methylation
by Jaqueline Loaeza-Loaeza, Adriana S. Beltran and Daniel Hernández-Sotelo
Genes 2020, 11(11), 1336; https://doi.org/10.3390/genes11111336 - 12 Nov 2020
Cited by 38 | Viewed by 5042
Abstract
DNA methyltransferases (DNMTs) play an essential role in DNA methylation and transcriptional regulation in the genome. DNMTs, along with other poorly studied elements, modulate the dynamic DNA methylation patterns of embryonic and adult cells. We summarize the current knowledge on the molecular mechanism [...] Read more.
DNA methyltransferases (DNMTs) play an essential role in DNA methylation and transcriptional regulation in the genome. DNMTs, along with other poorly studied elements, modulate the dynamic DNA methylation patterns of embryonic and adult cells. We summarize the current knowledge on the molecular mechanism of DNMTs’ functional targeting to maintain genome-wide DNA methylation patterns. We focus on DNMTs’ intrinsic characteristics, transcriptional regulation, and post-transcriptional modifications. Furthermore, we focus special attention on the DNMTs’ specificity for target sites, including key cis-regulatory factors such as CpG content, common motifs, transcription factors (TF) binding sites, lncRNAs, and histone marks to regulate DNA methylation. We also review how complexes of DNMTs/TFs or DNMTs/lncRNAs are involved in DNA methylation in specific genome regions. Understanding these processes is essential because the spatiotemporal regulation of DNA methylation modulates gene expression in health and disease. Full article
(This article belongs to the Special Issue Epigenetics and Chromosome Biology)
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