Cited by 705Genomics and Chromatin DynamicsGenomic variations and chromosomal abnormalitiesGenetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities

Formation of new chromatin domains determines pathogenicity of genomic duplications

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Franke, Martin, Ibrahim, Daniel M., Andrey, Guillaume, Schwarzer, Wibke, Heinrich, Verena, Schöpflin, Robert, Kraft, Katerina, Kempfer, Rieke +15 more·2016·Nature

Abstract

Chromosome conformation capture methods have identified subchromosomal structures of higher-order chromatin interactions called topologically associated domains (TADs) that are separated from each other by boundary regions. By subdividing the genome into discrete regulatory units, TADs restrict the contacts that enhancers establish with their target genes. However, the mechanisms that underlie partitioning of the genome into TADs remain poorly understood. Here we show by chromosome conformation capture (capture Hi-C and 4C-seq methods) that genomic duplications in patient cells and genetically modified mice can result in the formation of new chromatin domains (neo-TADs) and that this process determines their molecular pathology. Duplications of non-coding DNA within the mouse Sox9 TAD (intra-TAD) that cause female to male sex reversal in humans, showed increased contact of the duplicated regions within the TAD, but no change in the overall TAD structure. In contrast, overlapping duplications that extended over the next boundary into the neighbouring TAD (inter-TAD), resulted in the formation of a new chromatin domain (neo-TAD) that was isolated from the rest of the genome. As a consequence of this insulation, inter-TAD duplications had no phenotypic effect. However, incorporation of the next flanking gene, Kcnj2, in the neo-TAD resulted in ectopic contacts of Kcnj2 with the duplicated part of the Sox9 regulatory region, consecutive misexpression of Kcnj2, and a limb malformation phenotype. Our findings provide evidence that TADs are genomic regulatory units with a high degree of internal stability that can be sculptured by structural genomic variations. This process is important for the interpretation of copy number variations, as these variations are routinely detected in diagnostic tests for genetic disease and cancer. This finding also has relevance in an evolutionary setting because copy-number differences are thought to have a crucial role in the evolution of genome complexity.

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  1. Artus, J. & Hadjantonakis, A.-K. in Transgenic Mouse Methods and Protocols Vol. 693 Methods in Molecular Biology (eds Hofker, M. H. & van Deursen, J.) Ch. 3, 37-56 (Humana Press, 2011).
  2. van de Werken, H. J. G. et al. in Methods in Enzymology Vol. 513 (eds Wu, C. & Allis, D. C.) 89-112 (Academic Press, 2012).

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Authors
Franke, M., Ibrahim, D. M., Andrey, G., Schwarzer, W., Heinrich, V., Schöpflin, R., Kraft, K., Kempfer, R., Jerković, I., Chan, W.-L., Spielmann, M., Timmermann, B., Wittler, L., Kurth, I., Cambiaso, P., Zuffardi, O., Houge, G., Lambie, L., Brancati, F., Pombo, A., Vingron, M., Spitz, F., & Mundlos, S.
Affiliations
  • Max Planck Institute for Molecular Genetics (DE)
  • Berlin Institute of Health at Charité - Universitätsmedizin Berlin (DE)
  • European Molecular Biology Laboratory (DE)
  • Charité – Universitätsmedizin Berlin (DE)
  • Universitätsklinikum Aachen (DE)
  • Bambino Gesù Children's Hospital (IT)
  • University of Pavia (IT)
  • Haukeland University Hospital (NO)
  • National Health Laboratory Service (ZA)
  • University of L'Aquila (IT)
  • Max Delbrück Center (DE)
  • Berlin-Brandenburger Centrum für Regenerative Therapien (DE)
Corresponding author
Mundlos, Stefan
Venue
Nature
Published
2016-10
Volume
538
Issue
7624
Pages
265-269
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2528263447
Cited by
673
References
38
Citations by year
2026: 36 · 2025: 38 · 2024: 45 · 2023: 58 · 2022: 87 · 2021: 78 · 2020: 89 · 2019: 91 · 2018: 76 · 2017: 59 · 2016: 12 · 2014: 1 · 2012: 1
FWCI
41.42
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Archive ouverte UNIGE (University of Geneva) (publishedVersion)
  • Max Planck Digital Library (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (submittedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Archivio Istituzionale della Ricerca - Università degli Studi dell Aquila (submittedVersion)
  • Archive ouverte UNIGE (University of Geneva) (submittedVersion, cc-by)
Funders
  • Max-Planck-Förderstiftung
  • Deutsche Forschungsgemeinschaft
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
Keywords
genomic duplication, topologically associating domains, SOX9, KCNJ2, structural variants, enhancer-promoter interactions, gene misexpression, limb malformations, sex reversal, chromatin insulation, gene dosage, higher-order chromatin structure, mouse models of human disease, 4C-seq, Hi-C
MeSH terms
Animals, Disease, DNA, Female, Fibroblasts, Fingers, Foot Deformities, Congenital, Hand Deformities, Congenital, Male, Phenotype, Gene Expression, Facies, Gene Duplication, Genomics, Chromatin Assembly and Disassembly, Mice, SOX9 Transcription Factor, DNA Copy Number Variations

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