Cited by 82Epigenetics and DNA MethylationGenomics and Chromatin DynamicsGenetic Syndromes and Imprinting

High-throughput engineering of a mammalian genome reveals building principles of methylation states at CG rich regions

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Krebs, Arnaud R, Dessus-Babus, Sophie, Burger, Lukas, Schübeler, Dirk·2014·eLife

Abstract

The majority of mammalian promoters are CpG islands; regions of high CG density that require protection from DNA methylation to be functional. Importantly, how sequence architecture mediates this unmethylated state remains unclear. To address this question in a comprehensive manner, we developed a method to interrogate methylation states of hundreds of sequence variants inserted at the same genomic site in mouse embryonic stem cells. Using this assay, we were able to quantify the contribution of various sequence motifs towards the resulting DNA methylation state. Modeling of this comprehensive dataset revealed that CG density alone is a minor determinant of their unmethylated state. Instead, these data argue for a principal role for transcription factor binding sites, a prediction confirmed by testing synthetic mutant libraries. Taken together, these findings establish the hierarchy between the two cis-encoded mechanisms that define the DNA methylation state and thus the transcriptional competence of CpG islands.

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Authors
Krebs, A. R., Dessus-Babus, S., Burger, L., & Schübeler, D.
Affiliations
  • Friedrich Miescher Institute (CH)
  • SIB Swiss Institute of Bioinformatics (CH)
  • University of Basel (CH)
Corresponding author
Schübeler, Dirk
Venue
eLife
Published
2014-09-26
Volume
3
Pages
e04094-e04094
ISSN
2050-084X (ISSN-L)
OpenAlex
W2150627055
Cited by
81
References
43
Citations by year
2026: 2 · 2025: 2 · 2024: 8 · 2023: 1 · 2022: 8 · 2021: 9 · 2020: 11 · 2019: 9 · 2018: 7 · 2017: 6 · 2016: 7 · 2015: 10 · 2014: 1
FWCI
3.28
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • EMBO (Long Term Fellowship)
  • Novartis
  • European Union (NoE ‘EpiGeneSys’ FP7-HEALTH-2010-257082, ‘CADMAD’ FP7-ICT-265505, ‘Blueprint’; FP7-282510)
  • European Research Council (EpiGePlas)
  • Swiss Initiative in Systems Biology (SystemsX.ch) (RTD Cell Plasticity)
  • Swiss National Science Foundation (Sinergia Program)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
Keywords
DNA methylation, CpG islands, promoter methylation, transcription factor binding sites, cis-regulatory elements, sequence motifs, mouse embryonic stem cells, high-throughput mutagenesis, transcriptional competence
MeSH terms
Animals, Base Sequence, Cell Differentiation, Genetic Engineering, Humans, Mammals, Models, Genetic, Protein Binding, Transcription Factors, Gene Library, Genome, CpG Islands, DNA Methylation, Recombinases, Mice, Embryonic Stem Cells, High-Throughput Nucleotide Sequencing

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