Cited by 86Genomics and Chromatin DynamicsChromatin Remodeling and CancerChromosomal and Genetic Variations

DamC reveals principles of chromatin folding in vivo without crosslinking and ligation

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Redolfi, Josef, Zhan, Yinxiu, Valdes-Quezada, Christian, Kryzhanovska, Mariya, Guerreiro, Isabel, Iesmantavicius, Vytautas, Pollex, Tim, Grand, Ralph S. +6 more·2019·Nature Structural & Molecular Biology

Abstract

Current understanding of chromosome folding is largely reliant on chromosome conformation capture (3C)-based experiments, where chromosomal interactions are detected as ligation products after chromatin crosslinking. To measure chromosome structure in vivo, quantitatively and without crosslinking and ligation, we implemented a modified version of DNA adenine methyltransferase identification (DamID) named DamC, which combines DNA methylation-based detection of chromosomal interactions with next-generation sequencing and biophysical modeling of methylation kinetics. DamC performed in mouse embryonic stem cells provides the first in vivo validation of the existence of topologically associating domains (TADs), CTCF loops and confirms 3C-based measurements of the scaling of contact probabilities. Combining DamC with transposon-mediated genomic engineering shows that new loops can be formed between ectopic and endogenous CTCF sites, which redistributes physical interactions within TADs. DamC provides the first crosslinking- and ligation-free demonstration of the existence of key structural features of chromosomes and provides novel insights into how chromosome structure within TADs can be manipulated.

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  • The observed contact probability trend is consistent with previous estimations and is representative of the contact probabilities experienced by promoters in mES cells.

    “This is consistent with previous estimations33 confirmed using cross-linking and ligation-free methods34 and is representative of the contact probabilities experienced by promoters in mES cells (Extended Data Fig. 2b, c).”

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Authors
Redolfi, J., Zhan, Y., Valdes-Quezada, C., Kryzhanovska, M., Guerreiro, I., Iesmantavicius, V., Pollex, T., Grand, R. S., Mulugeta, E., Kind, J., Tiana, G., Smallwood, S. A., de Laat, W., & Giorgetti, L.
Affiliations
  • University of Basel (CH)
  • Friedrich Miescher Institute (CH)
  • Royal Netherlands Academy of Arts and Sciences (NL)
  • European Molecular Biology Laboratory (DE)
  • Erasmus MC (NL)
  • University of Milan (IT)
Corresponding author
Giorgetti, Luca
Venue
Nature Structural & Molecular Biology
Published
2019-05-27
Volume
26
Issue
6
Pages
471-480
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2947133061
Cited by
86
References
19
Citations by year
2026: 4 · 2025: 6 · 2024: 7 · 2023: 7 · 2022: 14 · 2021: 24 · 2020: 15 · 2019: 9
FWCI
5.13
Type
journal article
Language
en
Open access
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion)
  • KNAW Research Portal (The Royal Netherlands Academy of Arts and Sciences) (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, other-oa)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
  • KNAW research portal (Royal Academy of Art and Sciences (KNAW)) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
DamID, chromatin folding, chromosome conformation, topologically associating domains, DNA methylation, contact probability, mouse embryonic stem cells, loop formation, chromatin structure
MeSH terms
Mouse Embryonic Stem Cells, CCCTC-Binding Factor, Animals, Bacterial Proteins, Cell Line, Chromatin, Chromosomes, Nucleic Acid Conformation, Recombinant Fusion Proteins, Site-Specific DNA-Methyltransferase (Adenine-Specific), DNA Methylation, Mice

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