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The detailed 3D multi-loop aggregate/rosette chromatin architecture and functional dynamic organization of the human and mouse genomes

Knoch, Tobias A. ; Wachsmuth, Malte ; Kepper, Nick ; Lesnussa, Michael ; Abuseiris, Anis ; Ali Imam, A. M. ; Kolovos, Petros ; Zuin, Jessica ; Kockx, Christel E. M. ; Brouwer, Rutger W. W. ; van de Werken, Harmen J. G. ; van IJcken, Wilfred F. J. ; Wendt, Kerstin S. ; Grosveld, Frank G.

In: Epigenetics & Chromatin, 9 (2016), Nr. 58. pp. 1-22. ISSN 1756-8935

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Download (4MB) | Lizenz: Creative Commons LizenzvertragThe detailed 3D multi-loop aggregate/rosette chromatin architecture and functional dynamic organization of the human and mouse genomes by Knoch, Tobias A. ; Wachsmuth, Malte ; Kepper, Nick ; Lesnussa, Michael ; Abuseiris, Anis ; Ali Imam, A. M. ; Kolovos, Petros ; Zuin, Jessica ; Kockx, Christel E. M. ; Brouwer, Rutger W. W. ; van de Werken, Harmen J. G. ; van IJcken, Wilfred F. J. ; Wendt, Kerstin S. ; Grosveld, Frank G. underlies the terms of Creative Commons Attribution 3.0 Germany

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Abstract

Background: The dynamic three-dimensional chromatin architecture of genomes and its co-evolutionary connection to its function—the storage, expression, and replication of genetic information—is still one of the central issues in biology. Here, we describe the much debated 3D architecture of the human and mouse genomes from the nucleosomal to the megabase pair level by a novel approach combining selective high-throughput high-resolution chromosomal interaction capture (T2C), polymer simulations, and scaling analysis of the 3D architecture and the DNA sequence. Results: The genome is compacted into a chromatin quasi-fibre with ~5 ± 1 nucleosomes/11 nm, folded into stable ~30–100 kbp loops forming stable loop aggregates/rosettes connected by similar sized linkers. Minor but significant variations in the architecture are seen between cell types and functional states. The architecture and the DNA sequence show very similar fine-structured multi-scaling behaviour confirming their co-evolution and the above. Conclusions: This architecture, its dynamics, and accessibility, balance stability and flexibility ensuring genome integrity and variation enabling gene expression/regulation by self-organization of (in)active units already in proximity. Our results agree with the heuristics of the field and allow “architectural sequencing” at a genome mechanics level to understand the inseparable systems genomic properties.

Document type: Article
Journal or Publication Title: Epigenetics & Chromatin
Volume: 9
Number: 58
Publisher: BioMed Central
Place of Publication: London
Date Deposited: 04 Jan 2017 13:29
Date: 2016
ISSN: 1756-8935
Page Range: pp. 1-22
Faculties / Institutes: Service facilities > Bioquant
Service facilities > German Cancer Research Center (DKFZ)
Service facilities > European Molecular Biology Laboratory (EMBL)
DDC-classification: 610 Medical sciences Medicine
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