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Related Experiment Video

Updated: Dec 11, 2025

In-Nucleus Hi-C in Drosophila Cells
11:58

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Published on: September 15, 2021

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Targeted DNase Hi-C.

Zhijun Duan1,2

  • 1Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, WA, USA. zjduan@uw.edu.

Methods in Molecular Biology (Clifton, N.J.)
|August 22, 2020
PubMed
Summary
This summary is machine-generated.

We developed targeted DNase Hi-C, a high-resolution method for mapping three-dimensional (3D) genome organization. This technique overcomes limitations of traditional Hi-C, enabling detailed analysis of chromatin architecture and regulatory networks.

Keywords:
3C3D genomeChromatinChromosomeDNase Hi-CHi-C

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Last Updated: Dec 11, 2025

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Area of Science:

  • Genomics
  • Molecular Biology
  • Epigenetics

Background:

  • Understanding higher-order genome structure is crucial for deciphering gene regulation.
  • Chromosome conformation capture (3C) techniques, like Hi-C, are key tools for studying 3D genome organization.
  • Traditional Hi-C methods have limitations related to restriction enzyme digestion.

Purpose of the Study:

  • To introduce DNase Hi-C, a variant of Hi-C utilizing DNase I for chromatin fragmentation.
  • To present targeted DNase Hi-C, a high-throughput method for high-resolution 3D genome mapping.
  • To provide a detailed protocol for targeted DNase Hi-C library preparation.

Main Methods:

  • Development of DNase Hi-C, replacing restriction enzymes with DNase I for chromatin fragmentation.
  • Integration of DNA capture technology with DNase Hi-C to create a high-throughput approach.
  • Detailed protocol covering cell cross-linking to library amplification for targeted DNase Hi-C.

Main Results:

  • DNase Hi-C overcomes limitations associated with restriction enzyme-based Hi-C methods.
  • Targeted DNase Hi-C enables mapping of fine-scale chromatin architecture at exceptionally high resolution.
  • The method is ideal for characterizing cis-regulatory networks and phenotype-associated 3D genome signatures.

Conclusions:

  • Targeted DNase Hi-C offers a powerful tool for detailed 3D genome organization analysis.
  • This technique advances the study of physical landscapes of cis-regulatory networks.
  • It provides a high-resolution approach for identifying chromatin 3D signatures linked to phenotypes.