Cited by 1,743Epigenetics and DNA MethylationGenomics and Chromatin DynamicsGenetic Syndromes and Imprinting

Conserved role of intragenic DNA methylation in regulating alternative promoters

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Maunakea, Alika K., Nagarajan, Raman P., Bilenky, Mikhail, Ballinger, Tracy J., D’Souza, Cletus, Fouse, Shaun D., Johnson, Brett E., Hong, Chibo +18 more·2010·Nature

Abstract

Although it is known that the methylation of DNA in 5' promoters suppresses gene expression, the role of DNA methylation in gene bodies is unclear. In mammals, tissue- and cell type-specific methylation is present in a small percentage of 5' CpG island (CGI) promoters, whereas a far greater proportion occurs across gene bodies, coinciding with highly conserved sequences. Tissue-specific intragenic methylation might reduce, or, paradoxically, enhance transcription elongation efficiency. Capped analysis of gene expression (CAGE) experiments also indicate that transcription commonly initiates within and between genes. To investigate the role of intragenic methylation, we generated a map of DNA methylation from the human brain encompassing 24.7 million of the 28 million CpG sites. From the dense, high-resolution coverage of CpG islands, the majority of methylated CpG islands were shown to be in intragenic and intergenic regions, whereas less than 3% of CpG islands in 5' promoters were methylated. The CpG islands in all three locations overlapped with RNA markers of transcription initiation, and unmethylated CpG islands also overlapped significantly with trimethylation of H3K4, a histone modification enriched at promoters. The general and CpG-island-specific patterns of methylation are conserved in mouse tissues. An in-depth investigation of the human SHANK3 locus and its mouse homologue demonstrated that this tissue-specific DNA methylation regulates intragenic promoter activity in vitro and in vivo. These methylation-regulated, alternative transcripts are expressed in a tissue- and cell type-specific manner, and are expressed differentially within a single cell type from distinct brain regions. These results support a major role for intragenic methylation in regulating cell context-specific alternative promoters in gene bodies.

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Crossref · 10.1038/nature09165

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  • DNA methylation is associated with both increased and decreased gene expression and other genomic functions including alternative splicing and promoter usage.

    “DNA methylation is actually associated with both increased and decreased gene expression (Wagner et al., 2014) and other genomic functions including alternative splicing and promoter usage (Maunakea et al., 2010)”

    From DNA methylation meta-analysis reveals cellular alterations in psychosis and markers of treatment-resistant schizophrenia (2021) · cites this paper as Maunakea et al., 2010

    The paper reports that tissue-specific DNA methylation regulates intragenic promoter activity and alternative transcripts (Abstract; page not provided), supporting the promoter-usage part attributed to Maunakea et al. Our copy does not establish an association with alternative splicing; a search for “splicing” found no relevant passage. The increased-and-decreased-expression clause is cited to Wagner et al., not to this source. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Alternative promoters have dynamic intragenic DNA methylation across human tissues.

    “Alternative promoters have dynamic intragenic DNA methylation across human tissues20”

    From Alternative promoters in CpG depleted regions are prevalently associated with epigenetic misregulation of liver cancer transcriptomes (2023) · cites this paper as [20]

    The SHANK3 analysis (section labeled Abstract; page unavailable) reports that intragenic alternative promoters have tissue-specific DNA methylation and that their methylation and expression patterns are similar in matched human and mouse tissues. The paper supports variation across human tissues at this locus, but its broader tissue comparisons rely substantially on mouse data; it does not establish the claim generally for alternative promoters across human tissues. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Gene bodies have high levels of DNA methylation across both MP and SP genes.

    “Gene bodies have high levels of DNA methylation20,53, which we observed across both MP and SP genes”
  • There are additional start sites in the human and mouse SHANK3 gene that may lead to shorter products truncated at the N terminus (termed 22t and 32t).

    “A recent report has indicated that there are additional start sites in the human and mouse SHANK3 gene that may lead to shorter products, truncated at the N terminus (termed 22t and 32t in that report [51]).”
  • Expression of Shank3 isoforms is cell type-specific and developmentally regulated.

    “The expression of Shank3 isoforms is cell type-specific and developmentally regulated (Lim et al., 1999; Maunakea et al., 2010).”

    From Modeling Autism by SHANK Gene Mutations in Mice (2013) · cites this paper as Maunakea et al., 2010

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Authors
Maunakea, A. K., Nagarajan, R. P., Bilenky, M., Ballinger, T. J., D’Souza, C., Fouse, S. D., Johnson, B. E., Hong, C., Nielsen, C., Zhao, Y., Turecki, G., Delaney, A., Varhol, R., Thiessen, N., Shchors, K., Heine, V. M., Rowitch, D. H., Xing, X., Fiore, C., Schillebeeckx, M., Jones, S. J. M., Haussler, D., Marra, M. A., Hirst, M., Wang, T., & Costello, J. F.
Affiliations
  • University of California, San Francisco (US)
  • BC Cancer Agency (CA)
  • University of California, Santa Cruz (US)
  • Douglas Mental Health University Institute (CA)
  • Washington University in St. Louis (US)
  • Howard Hughes Medical Institute (US)
Corresponding author
  • Wang, Ting
  • Costello, Joseph F.
Venue
Nature
Published
2010-07
Volume
466
Issue
7303
Pages
253-257
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2065498897
Cited by
1,743
References
30
Citations by year
2026: 46 · 2025: 58 · 2024: 55 · 2023: 65 · 2022: 85 · 2021: 131 · 2020: 119 · 2019: 92 · 2018: 122 · 2017: 118 · 2016: 110 · 2015: 161 · 2014: 165 · 2013: 158 · 2012: 147
FWCI
53.97
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • eSpace (Curtin University) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • GlaxoSmithKline
  • Genome Canada
  • Genome British Columbia
  • National Institutes of Health
  • National Institute of Environmental Health Sciences (U01ES017154)
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
alternative promoters, gene body methylation, CpG islands, human brain, histone H3 lysine 4 trimethylation, histone modifications, tissue-specific gene expression, transcription initiation, gene expression regulation, epigenetics, human-mouse comparison, transcription elongation
MeSH terms
Animals, Brain, Carrier Proteins, Cell Line, Frontal Lobe, Gene Expression Regulation, Histones, Humans, Male, Mice, Inbred C57BL, Microfilament Proteins, Middle Aged, Nerve Tissue Proteins, Organ Specificity, Promoter Regions, Genetic, Transcription, Genetic, Conserved Sequence, CpG Islands, DNA Methylation, DNA, Intergenic, Mice

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