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The three-dimensional folding of the α-globin gene domain reveals formation of chromatin globules

Open access
Baù, Davide, Sanyal, Amartya, Lajoie, Bryan R, Capriotti, Emidio, Byron, Meg, Lawrence, Jeanne B, Dekker, Job, Marti-Renom, Marc A·2011·Nature Structural & Molecular Biology

Abstract

We developed a general approach that combines chromosome conformation capture carbon copy (5C) with the Integrated Modeling Platform (IMP) to generate high-resolution three-dimensional models of chromatin at the megabase scale. We applied this approach to the ENm008 domain on human chromosome 16, containing the α-globin locus, which is expressed in K562 cells and silenced in lymphoblastoid cells (GM12878). The models accurately reproduce the known looping interactions between the α-globin genes and their distal regulatory elements. Further, we find using our approach that the domain folds into a single globular conformation in GM12878 cells, whereas two globules are formed in K562 cells. The central cores of these globules are enriched for transcribed genes, whereas nontranscribed chromatin is more peripheral. We propose that globule formation represents a higher-order folding state related to clustering of transcribed genes around shared transcription machineries, as previously observed by microscopy.

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Metadata

Authors
Baù, D., Sanyal, A., Lajoie, B. R., Capriotti, E., Byron, M., Lawrence, J. B., Dekker, J., & Marti-Renom, M. A.
Venue
Nature Structural & Molecular Biology
Published
2010-12-05
Volume
18
Issue
1
Pages
107-114
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2153856160
Cited by
271
References
8
FWCI
9.10
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: The three-dimensional folding of the α-globin gene domain reveals formation of chromatin globules. https://app.cochat.ai/papers/10.1038/nsmb.1936
The paper
Baù, D., Sanyal, A., Lajoie, B. R., Capriotti, E., Byron, M., Lawrence, J. B., Dekker, J., & Marti-Renom, M. A. (2011). The three-dimensional folding of the α-globin gene domain reveals formation of chromatin globules. Nature Structural & Molecular Biology. https://doi.org/10.1038/nsmb.1936

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.