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Related Concept Videos

Western Blotting01:15

Western Blotting

21.1K
Western blotting is an analytical technique for protein identification. It has various applications in immunology and medicine, including detecting diseases like bovine spongiform encephalopathy, mad cow disease, and human and feline immunodeficiency virus from biological samples.
The technique begins with separating proteins from the sample using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), followed by protein transfer, immunoblotting, and finally, protein detection.
21.1K

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Related Experiment Video

Updated: Feb 21, 2026

Consensus Brain-derived Protein, Extraction Protocol for the Study of Human and Murine Brain Proteome Using Both 2D-DIGE and Mini 2DE Immunoblotting
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Immunoblot Analysis of DIGE-Based Proteomics.

Martin Landsberger1, Heinrich Brinkmeier2

  • 1Institute of Pathophysiology, University Medicine Greifswald, Greifswalder Straße 11c, 17495, Karlsburg, Germany. martin.landsberger@uni-greifswald.de.

Methods in Molecular Biology (Clifton, N.J.)
|October 12, 2017
PubMed
Summary

Western blotting is a sensitive technique for protein analysis after gel electrophoresis. It verifies data from proteomics studies by detecting proteins transferred to a membrane using specific antibodies.

Keywords:
AntibodiesDenatured proteinsElectrophoresisEnhanced chemiluminescence (ECL)ImmunoblottingMolecular weightPolyacrylamide gels

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Proteomics

Background:

  • Gel electrophoresis separates proteins by size.
  • Western blotting is a key technique for protein analysis.
  • Proteomics studies often require verification of protein expression data.

Purpose of the Study:

  • To describe the principles and applications of Western blotting.
  • To highlight its role in validating data from difference gel electrophoresis (DIGE).

Main Methods:

  • Proteins are separated using gel electrophoresis.
  • Separated proteins are transferred to a nitrocellulose or PVDF membrane.
  • Proteins on the membrane are detected using specific antibodies and visualized.

Main Results:

  • A replica of the protein separation pattern is created on the membrane.
  • Specific proteins can be identified and quantified.
  • Western blotting provides sensitive detection of target proteins.

Conclusions:

  • Western blotting is a valuable and sensitive method for protein detection.
  • It serves as a crucial validation tool for proteomics experiments, including DIGE.
  • The technique enables confirmation of protein presence and abundance.