Cited by 577Genetics and Neurodevelopmental DisordersEpigenetics and DNA MethylationGenomics and Chromatin Dynamics

Disruption of DNA-methylation-dependent long gene repression in Rett syndrome

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Gabel, Harrison W., Kinde, Benyam, Stroud, Hume, Gilbert, Caitlin S., Harmin, David A., Kastan, Nathaniel R., Hemberg, Martin, Ebert, Daniel H. +1 more·2015·Nature

Abstract

Disruption of the MECP2 gene leads to Rett syndrome (RTT), a severe neurological disorder with features of autism. MECP2 encodes a methyl-DNA-binding protein that has been proposed to function as a transcriptional repressor, but despite numerous mouse studies examining neuronal gene expression in Mecp2 mutants, no clear model has emerged for how MeCP2 protein regulates transcription. Here we identify a genome-wide length-dependent increase in gene expression in MeCP2 mutant mouse models and human RTT brains. We present evidence that MeCP2 represses gene expression by binding to methylated CA sites within long genes, and that in neurons lacking MeCP2, decreasing the expression of long genes attenuates RTT-associated cellular deficits. In addition, we find that long genes as a population are enriched for neuronal functions and selectively expressed in the brain. These findings suggest that mutations in MeCP2 may cause neurological dysfunction by specifically disrupting long gene expression in the brain.

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  • Independent studies report that MECP2 binds both 5mCA and 5mCG sites with high affinity.

    “Independent studies have reported that MECP2 binds to both 5mCA and 5mCG sites with high affinity (37, 39, 40).”
  • In neurons, intragenic 5mCH quantitatively modulates gene expression by interacting with MECP2 and recruiting the NCoR corepressor complex to chromatin.

    “In neurons, intragenic 5mCH quantitatively modulates gene expression by interacting with MECP2 and recruiting NCoR corepressor complex to chromatin (37–40).”
  • MECP2- and 5mCA-dependent repression is particularly critical for long genes longer than 100 kb, many of which have neuronal functions.

    “MECP2 and 5mCA dependent repression is particularly critical for long genes (with a length greater than 100kb), many of which have neuronal functions (39).”

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Authors
Gabel, H. W., Kinde, B., Stroud, H., Gilbert, C. S., Harmin, D. A., Kastan, N. R., Hemberg, M., Ebert, D. H., & Greenberg, M. E.
Affiliations
  • Harvard University (US)
  • Boston Children's Hospital (US)
Corresponding author
Greenberg, Michael E.
Venue
Nature
Published
2015-03-11
Volume
522
Issue
7554
Pages
89-93
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2035016973
Cited by
569
References
53
Citations by year
2026: 29 · 2025: 42 · 2024: 41 · 2023: 39 · 2022: 50 · 2021: 49 · 2020: 51 · 2019: 52 · 2018: 55 · 2017: 61 · 2016: 67 · 2015: 31 · 2014: 1
FWCI
48.74
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health (5r01ns048276-15)
  • National Institute of General Medical Sciences (T32GM007753)
  • National Institute of Neurological Disorders and Stroke (R01-NS-048276, 1R01NS048276)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (P30HD018655)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • 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
Keywords
Rett syndrome, MeCP2, DNA methylation, gene length, gene expression inhibition, neuronal gene expression, autism spectrum disorder, transcriptional regulation, brain
MeSH terms
DNA Methyltransferase 3A, Animals, Base Sequence, Brain, Disease Models, Animal, DNA (Cytosine-5-)-Methyltransferases, Female, Gene Expression Regulation, Humans, Male, Molecular Sequence Data, Mutation, Neurons, Rett Syndrome, DNA Methylation, Mice, Methyl-CpG-Binding Protein 2

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