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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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Updated: Jun 10, 2025

Associated Chromosome Trap for Identifying Long-range DNA Interactions

Associated Chromosome Trap for Identifying Long-range DNA Interactions

Published on: April 23, 2011

3C-based methods to detect long-range chromatin interactions.

Gang Wei¹, Keji Zhao¹

¹Laboratory of Molecular Immunology, National Heart, Lung and Blood Institute, NIH, 9000 Rockville Pike, Bethesda, MD 20892, USA.

Frontiers in Biology

|October 14, 2024

Summary

This summary is machine-generated.

Long-range chromatin interactions bring distant regulatory DNA closer to genes. Chromosome conformation capture (3C) methods map these crucial interactions, advancing our understanding of gene regulation and genome organization.

Keywords:

3C chromatin interactions gene regulation next-generation sequencing

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Last Updated: Jun 10, 2025

Associated Chromosome Trap for Identifying Long-range DNA Interactions

Associated Chromosome Trap for Identifying Long-range DNA Interactions

Published on: April 23, 2011

Capturing Chromosome Conformation Across Length Scales

Capturing Chromosome Conformation Across Length Scales

Published on: January 20, 2023

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

Area of Science:

Molecular Biology
Genomics
Epigenetics

Background:

Gene regulation involves distal regulatory elements interacting with promoters.
Chromatin structure facilitates these long-range interactions through looping.
Understanding these interactions is key to deciphering gene expression control.

Purpose of the Study:

To review 3C-based technologies for mapping long-range chromatin interactions.
To highlight recent findings from studies utilizing these chromatin interaction mapping techniques.
To underscore the importance of genome organization in gene regulation.

Main Methods:

Review of Chromosome Conformation Capture (3C) and its derivative methods.
Analysis of techniques used to detect and map chromatin interactions.
Synthesis of findings from various studies employing 3C-based technologies.

Main Results:

3C-based methods are effective tools for detecting long-range chromatin interactions.
These technologies have significantly advanced the understanding of genome organization and function.
Numerous studies have revealed critical insights into gene regulation through chromatin looping.

Conclusions:

3C and its derivatives are indispensable for studying the 3D genome architecture.
Mapping long-range chromatin interactions provides fundamental insights into gene expression.
Continued investigation using these methods will further elucidate genome function.