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Related Concept Videos

Western Blotting01:15

Western Blotting

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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.
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Southern Blot02:57

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Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
Denatured DNA fragments must be transferred onto a carrier membrane from the gel to make it accessible to a probe - a small ssDNA fragment complementary to the target DNA...
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Two-dimensional Gel Electrophoresis01:22

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Two-dimensional gel electrophoresis is a high-resolution protein separation method first introduced by O' Farrell and Klose in 1975. This method involves protein separation by two dimensions, mass and charge, making it more accurate than one-dimensional gel electrophoresis.
The first dimension separation uses the isoelectric focusing or IEF technique performed on immobilized pH gradient (IPG) strips that separate proteins according to their isoelectric points.
Biological samples, such...
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SDS-PAGE01:27

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Gel electrophoresis is a method that separates biological macromolecules like nucleic acids or proteins by forcing them to pass through a gel matrix under an electric field.
A variation of gel electrophoresis, termed  polyacrylamide gel electrophoresis (PAGE), is commonly used for separating proteins according to their molecular size by passing them through a polyacrylamide gel. Because of the varying charges associated with amino acid side chains, PAGE can be used to separate intact...
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Updated: Sep 29, 2025

The Fastest Western in Town: A Contemporary Twist on the Classic Western Blot Analysis
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The Fastest Western in Town: A Contemporary Twist on the Classic Western Blot Analysis

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Western blot analysis.

Seishiro Hirano1

  • 1Environmental Nanotoxicology Section, RCER, National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan. seishiro@nies.go.jp

Methods in Molecular Biology (Clifton, N.J.)
|September 15, 2012
PubMed
Summary
This summary is machine-generated.

Western blot analysis is crucial for studying nanomaterial effects on cells. Proper sample preparation and antibody selection are key for accurate detection of proteins, including phosphorylated ones.

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Area of Science:

  • Biochemistry
  • Nanotechnology
  • Cell Biology

Background:

  • Electrophoresis and western blot analysis are essential for investigating cellular and tissue responses to nanomaterials.
  • Accurate protein detection requires optimized sample preparation, particularly for phosphorylated proteins.

Purpose of the Study:

  • To provide a comprehensive guide to western blot analysis for studying nanomaterial-exposed cells and tissues.
  • To highlight critical steps and potential challenges, such as protein adsorption on nanomaterials.

Main Methods:

  • Detailed description of western blot protocol, from sample extraction to protein quantification.
  • Emphasis on optimized methods for protein extraction, blocking, and antibody selection.
  • Consideration of nanomaterial-specific issues like surface protein adsorption.

Main Results:

  • The chapter outlines a complete western blot workflow.
  • It addresses the specific challenges posed by nanomaterials in biochemical analysis.
  • Best practices for achieving reliable results are presented.

Conclusions:

  • Western blot is a vital technique for nanomaterial research.
  • Careful optimization of each step, including sample preparation and reagent selection, is critical for success.
  • Awareness of nanomaterial-specific artifacts is necessary for accurate interpretation of results.