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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 23, 2026

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

Analysis of reconstituted chromatin using a solid-phase approach.

Raphael Sandaltzopoulos¹, Peter B Becker

¹Laboratory of Gene Expression, Molecular Diagnostics and Modern Therapeutics, Department of Molecular Biology and Genetics, Democritus University of Thrace, Alexandroupolis, Greece.

Methods in Molecular Biology (Clifton, N.J.)

|April 22, 2009

Summary

This summary is machine-generated.

Immobilizing chromatin on paramagnetic beads simplifies complex experiments. This method allows for fast, quantitative separation of chromatin components using a magnet, improving experimental efficiency.

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Published on: April 30, 2012

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Last Updated: Jun 23, 2026

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

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Published on: April 11, 2014

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Chromatin Interaction Analysis with Paired-End Tag Sequencing (ChIA-PET) for Mapping Chromatin Interactions and Understanding Transcription Regulation

Chromatin Interaction Analysis with Paired-End Tag Sequencing (ChIA-PET) for Mapping Chromatin Interactions and Understanding Transcription Regulation

Published on: April 30, 2012

Area of Science:

Molecular Biology
Biochemistry
Genetics

Background:

Nucleosomal arrays are crucial for DNA packaging and regulation.
In vitro chromatin reconstitution and interaction studies require efficient component separation.
Paramagnetic beads offer a method for rapid isolation of molecular complexes.

Purpose of the Study:

To detail a method for immobilizing linear plasmid DNA onto streptavidin-coated paramagnetic beads.
To describe the process of reconstituting chromatin on these immobilized DNA templates.
To outline fundamental procedures for handling chromatin-bound beads.

Main Methods:

Immobilization of linear plasmid DNA on streptavidin-coated paramagnetic beads.
Reconstitution of nucleosomal arrays on the immobilized DNA.
Magnetic separation of chromatin-bound beads from reaction mixtures.

Main Results:

Successful immobilization of DNA on paramagnetic beads.
Efficient reconstitution of chromatin on the beads.
Quantitative and rapid separation of chromatin components via magnetic retrieval.

Conclusions:

This strategy facilitates complex in vitro chromatin studies.
Paramagnetic bead immobilization provides an efficient tool for chromatin research.
The described methods streamline the handling and analysis of reconstituted chromatin.