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Related Concept Videos

Western Blotting01:15

Western Blotting

22.3K
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.
22.3K

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Related Experiment Video

Updated: Apr 11, 2026

A Western Blotting Protocol for Small Numbers of Hematopoietic Stem Cells
08:45

A Western Blotting Protocol for Small Numbers of Hematopoietic Stem Cells

Published on: August 22, 2018

11.2K

Single-cell western blotting.

Syed M S Quadri1

  • 1Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, 825 NE 13th Street, Oklahoma City, OK, 73104, USA, Syed-Quadri@omrf.org.

Methods in Molecular Biology (Clifton, N.J.)
|June 6, 2015
PubMed
Summary
This summary is machine-generated.

Cell heterogeneity, a variation in cell processes, impacts cell function and physiological outcomes. Single-cell western blotting offers high-resolution detection of protein expression for assessing this cell-to-cell variation.

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Western Blotting: Sample Preparation to Detection
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Last Updated: Apr 11, 2026

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Area of Science:

  • Cell biology
  • Biochemistry
  • Proteomics

Background:

  • Cell heterogeneity describes variations in size, structure, and protein expression among genetically identical cells.
  • These cellular differences significantly impact cell function and physiological consequences.
  • Existing methods like flow cytometry and immunocytochemistry have limitations due to antibody specificity and cross-reactivity.

Purpose of the Study:

  • To introduce and describe single-cell western blotting as an advanced technique.
  • To highlight its capability in detecting protein expression at the individual cell level.
  • To address the limitations of traditional methods in assessing cell-to-cell variation.

Main Methods:

  • Utilizes western blot principles adapted for single-cell analysis.
  • Designed to assess protein expression with high resolution at the cellular level.
  • Overcomes limitations of antibody-dependent methods by separating proteins based on molecular weight.

Main Results:

  • Enables the detection of protein expression variations between individual cells.
  • Provides a method to discriminate between on-target and off-target protein signals.
  • Offers high-resolution insights into cellular heterogeneity.

Conclusions:

  • Single-cell western blotting is a powerful tool for studying cell heterogeneity.
  • This technique allows for precise measurement of protein expression at the single-cell level.
  • It advances the understanding of cellular differences and their functional implications.