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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...

Immunoprecipitation

Immunoprecipitation

Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...

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Related Experiment Video

Updated: Jun 24, 2026

Efficient Chromatin Immunoprecipitation using Limiting Amounts of Biomass

Efficient Chromatin Immunoprecipitation using Limiting Amounts of Biomass

Published on: May 1, 2013

A streamlined method for rapid and sensitive chromatin immunoprecipitation.

Michael L Sikes¹, Justin M Bradshaw, Wendell T Ivory

¹Department of Microbiology, North Carolina State University, Raleigh, NC 27695, USA. mlsikes@ncsu.edu

Journal of Immunological Methods

|March 31, 2009

Summary

This study presents a fast, 4-hour chromatin immunoprecipitation (ChIP) method for analyzing histone modifications. The streamlined ChIP protocol is effective even with limited cell numbers, offering a cost-efficient solution for epigenetic research.

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Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)

Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)

Published on: April 19, 2013

The ChroP Approach Combines ChIP and Mass Spectrometry to Dissect Locus-specific Proteomic Landscapes of Chromatin

The ChroP Approach Combines ChIP and Mass Spectrometry to Dissect Locus-specific Proteomic Landscapes of Chromatin

Published on: April 11, 2014

Related Experiment Videos

Last Updated: Jun 24, 2026

Efficient Chromatin Immunoprecipitation using Limiting Amounts of Biomass

Efficient Chromatin Immunoprecipitation using Limiting Amounts of Biomass

Published on: May 1, 2013

Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)

Generation of High Quality Chromatin Immunoprecipitation DNA Template for High-throughput Sequencing (ChIP-seq)

Published on: April 19, 2013

The ChroP Approach Combines ChIP and Mass Spectrometry to Dissect Locus-specific Proteomic Landscapes of Chromatin

The ChroP Approach Combines ChIP and Mass Spectrometry to Dissect Locus-specific Proteomic Landscapes of Chromatin

Published on: April 11, 2014

Area of Science:

Epigenetics
Molecular Biology
Cell Biology

Background:

Chromatin immunoprecipitation (ChIP) is crucial for studying protein-DNA interactions and epigenetic modifications.
Traditional ChIP protocols can be time-consuming and require substantial starting material.
Efficient quantification of histone modifications is essential for understanding gene regulation.

Purpose of the Study:

To develop and validate a streamlined ChIP protocol for rapid and efficient analysis of histone modifications.
To demonstrate the protocol's effectiveness in quantifying histone modifications at specific gene promoters.
To show the protocol's utility with limited cell input.

Main Methods:

A simplified chromatin immunoprecipitation (ChIP) procedure was developed.
The protocol reduces sample processing time from chromatin to qPCR-ready DNA to approximately 4 hours.
Histone H3 modifications were quantified using quantitative PCR (qPCR) in a Rag1-deficient pro-T cell line.

Main Results:

The streamlined ChIP protocol successfully quantified histone H3 modifications at active (cad) and repressed (T early alpha) promoters.
The method demonstrated efficiency with as few as 10^4 Rag-deficient DN thymocytes.
Successful quantification was achieved after a short 1-2 hour immunoprecipitation (IP) period.

Conclusions:

The developed protocol offers a simple, cost-effective, and efficient method for ChIP analysis.
This streamlined approach significantly reduces the time required for ChIP experiments.
The protocol is suitable for analyzing histone modifications in limited cell populations, advancing epigenetic studies.