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Chromatin Immunoprecipitation- ChIP

Chromatin Immunoprecipitation- ChIP

Chromatin immunoprecipitation, or ChIP, is an antibody-based technique used to identify sites on DNA that bind to transcription factors of interest or histone proteins. It also helps determine the type of histone modifications such as acetylation, phosphorylation, or methylation.
Types of ChIP
ChIP can be divided into two types - X-ChIP and N-ChIP. X-ChIP involves in vivo cross-linking of histones and regulatory proteins to DNA, fragmenting the DNA by sonication, and isolating the protein-DNA...

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Related Experiment Video

Updated: Sep 13, 2025

Deciphering High-Resolution 3D Chromatin Organization via Capture Hi-C

Deciphering High-Resolution 3D Chromatin Organization via Capture Hi-C

Published on: October 14, 2022

Image-based 3D genomics through chromatin tracing.

Tianqi Yang¹, Siyuan Wang^{1,2,3,4,5,6,7,8}

¹Department of Genetics, Yale University, New Haven, CT, USA.

Nature Reviews. Methods Primers

|August 4, 2025

Summary

This summary is machine-generated.

Chromatin tracing visualizes 3D genome folding at the single-cell level. This powerful technique maps chromatin trajectories in situ, advancing our understanding of gene regulation and genomic functions.

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Last Updated: Sep 13, 2025

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Area of Science:

Genomics
Molecular Biology
Cell Biology

Background:

Higher-order genome folding is crucial for gene expression and DNA replication.
Previous methods lacked single-cell resolution for 3D chromatin structure.
Understanding 3D chromatin organization in intact cells remained a challenge.

Purpose of the Study:

To introduce chromatin tracing as a method for mapping 3D genome folding.
To explain the principles, data analysis, and applications of chromatin tracing.
To discuss the integration of chromatin tracing with other technologies.

Main Methods:

Development of chromatin tracing using advanced labelling, imaging, and fluidics.
Direct mapping of 3D chromatin folding trajectories in situ.
Single-cell and single-molecule resolution analysis.

Main Results:

Chromatin tracing enables direct visualization of genome folding.
The technique has been applied across various genomic scales, cell types, and organisms.
Improved understanding of chromatin organization structures, mechanisms, and functions.

Conclusions:

Chromatin tracing is a key technology for studying 3D genome organization.
It offers insights into biological and medical fields by revealing chromatin structures.
Future developments aim to overcome current limitations and expand discovery potential.