Cited by 271Genetics and Neurodevelopmental DisordersChromatin Remodeling and CancerGenomics and Rare Diseases

Haploinsufficiency of ARID1B, a Member of the SWI/SNF-A Chromatin-Remodeling Complex, Is a Frequent Cause of Intellectual Disability

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Hoyer, Juliane, Ekici, Arif B., Endele, Sabine, Popp, Bernt, Zweier, Christiane, Wiesener, Antje, Wohlleber, Eva, Dufke, Andreas +12 more·2012·The American Journal of Human Genetics

Abstract

Intellectual disability (ID) is a clinically and genetically heterogeneous common condition that remains etiologically unresolved in the majority of cases. Although several hundred diseased genes have been identified in X-linked, autosomal-recessive, or syndromic types of ID, the establishment of an etiological basis remains a difficult task in unspecific, sporadic cases. Just recently, de novo mutations in SYNGAP1, STXBP1, MEF2C, and GRIN2B were reported as relatively common causes of ID in such individuals. On the basis of a patient with severe ID and a 2.5 Mb microdeletion including ARID1B in chromosomal region 6q25, we performed mutational analysis in 887 unselected patients with unexplained ID. In this cohort, we found eight (0.9%) additional de novo nonsense or frameshift mutations predicted to cause haploinsufficiency. Our findings indicate that haploinsufficiency of ARID1B, a member of the SWI/SNF-A chromatin-remodeling complex, is a common cause of ID, and they add to the growing evidence that chromatin-remodeling defects are an important contributor to neurodevelopmental disorders.

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Crossref · 10.1016/j.ajhg.2012.02.007

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  • Mutations in six BAF complex components (SMARCB1, SMARCA4, SMARCA2, SMARCE1, ARID1A and ARID1B) have been reported in patients with intellectual disability.

    “Interestingly, mutations in patients with intellectual disability have been reported in six components of these complexes (SMARCB1, SMARCA4, SMARCA2, SMARCE1, ARID1A and ARID1B).”
  • The phenotype associated with mutations in these BAF component genes ranges from non-syndromic intellectual disability with hypotonia and speech delay to recognizable syndromes such as Coffin-Siris syndrome and Nicolaides-Baraitser syndrome.

    “The phenotype associated with mutations in these genes ranges from non-syndromic intellectual disability with hypotonia and speech delay to recognizable syndromes such as the Coffin-Siris syndrome and Nicolaides-Baraitser syndrome.”

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Authors
Hoyer, J., Ekici, A. B., Endele, S., Popp, B., Zweier, C., Wiesener, A., Wohlleber, E., Dufke, A., Rossier, E., Petsch, C., Zweier, M., Göhring, I., Zink, A. M., Rappold, G., Schröck, E., Wieczorek, D., Riess, O., Engels, H., Rauch, A., & Reis, A.
Affiliations
  • Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
  • University of Bonn (DE)
  • University of Tübingen (DE)
  • Heidelberg University (DE)
  • Technische Universität Dresden (DE)
  • Essen University Hospital (DE)
Corresponding author
Reis, André
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2012-03
Volume
90
Issue
3
Pages
565-572
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2071476740
Cited by
263
References
24
Citations by year
2026: 11 · 2025: 7 · 2024: 16 · 2023: 19 · 2022: 12 · 2021: 31 · 2020: 16 · 2019: 18 · 2018: 18 · 2017: 22 · 2016: 16 · 2015: 25 · 2014: 28 · 2013: 18 · 2012: 4
FWCI
14.45
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Universitätsbibliographie, Universität Duisburg-Essen (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
Bundesministerium für Bildung und Forschung (01GS08160)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
ARID1B, haploinsufficiency, intellectual disability, chromatin remodeling, de novo mutations, nonsense mutation, frameshift mutation, neurodevelopmental disorders
MeSH terms
Adolescent, Adult, Child, Child, Preschool, Chromatin, Chromosomal Proteins, Non-Histone, DNA Mutational Analysis, DNA-Binding Proteins, Exons, Female, Humans, Male, Intellectual Disability, Middle Aged, Mutation, Transcription Factors, Cohort Studies, Chromatin Assembly and Disassembly, Young Adult, Haploinsufficiency

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