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Related Concept Videos

Chromatin Immunoprecipitation- ChIP02:36

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...
Immunoprecipitation01:20

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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Updated: May 19, 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

Nanobody-based chromatin immunoprecipitation.

Trong Nguyen Duc1, Gholamreza Hassanzadeh-Ghassabeh, Dirk Saerens

  • 1Department of Molecular and Cellular Interactions, VIB, Brussels, Belgium.

Methods in Molecular Biology (Clifton, N.J.)
|August 14, 2012
PubMed
Summary

This study introduces a novel Nanobody-based Chromatin immunoprecipitation (ChIP) protocol. This method enables effective genome-wide identification of DNA-protein interactions, even for low-abundant factors.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Immunology

Background:

  • Chromatin immunoprecipitation (ChIP) is a powerful technique for analyzing in vivo DNA-protein interactions at a genomic scale.
  • Traditional ChIP methods often rely on antibodies with limitations such as aspecificity and batch-to-batch variability.
  • Existing antibody types, including monoclonal antibodies (mAbs), may not efficiently capture DNA-protein complexes or be easily engineered.

Purpose of the Study:

  • To develop and validate a Nanobody-based Chromatin immunoprecipitation (ChIP) protocol.
  • To overcome the limitations associated with conventional antibodies in ChIP assays.
  • To enable the genome-wide identification of binding sites for low-abundant transcription factors.

Main Methods:

  • Generation of Nanobodies, which are single domain antibody fragments derived from camelid Heavy-Chain antibodies.
  • Development of a streamlined ChIP protocol utilizing these engineered Nanobodies.
  • Application of the Nanobody-ChIP protocol for identifying transcription factor binding sites.

Main Results:

  • Nanobodies demonstrated high affinity and specificity for their target antigens.
  • The Nanobody-based ChIP protocol successfully enabled genome-wide identification of DNA-protein interactions.
  • The protocol was effective for analyzing low-abundant transcription factors, exemplified by Ss-LrpB from Sulfolobus solfataricus.

Conclusions:

  • Nanobodies offer a superior alternative to conventional antibodies for ChIP applications.
  • The developed Nanobody-ChIP protocol is efficient and robust for genomic analysis of DNA-protein interactions.
  • This approach facilitates the study of challenging targets, including low-abundant transcription factors in various organisms.