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Related Concept Videos

Two-dimensional Gel Electrophoresis01:22

Two-dimensional Gel Electrophoresis

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 as  cells...
DNA Agarose Gel Electrophoresis02:35

DNA Agarose Gel Electrophoresis

Agarose gel electrophoresis is a laboratory technique commonly used to separate DNA fragments by size. However, it can also be used to isolate and purify DNA fragments using a gel extraction protocol.
Gel extraction follows five major steps: running gel electrophoresis to separate fragments, isolating the individual bands, extracting DNA from those bands, and removing the dye and salts from the extracted mixture to obtain pure DNA.
In cloning experiments, both the insert and vector DNA...
SDS-PAGE01:27

SDS-PAGE

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 proteins...
Labeling DNA Probes03:31

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...

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Related Experiment Video

Updated: Jul 6, 2026

Selective Labelling of Cell-surface Proteins using CyDye DIGE Fluor Minimal Dyes
14:43

Selective Labelling of Cell-surface Proteins using CyDye DIGE Fluor Minimal Dyes

Published on: November 26, 2008

Radiolabeling for two-dimensional gel analysis.

Hélian Boucherie1, Aurélie Massoni, Christelle Monribot-Espagne

  • 1Centre National de la Recherche Scientifique, Bordeaux, France.

Methods in Molecular Biology (Clifton, N.J.)
|March 29, 2008
PubMed
Summary

This study details radiolabeling protocols for sensitive protein detection using radioactive amino acids. It enables protein visualization and comparison via two-dimensional gel electrophoresis.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Proteomics

Background:

  • Radiolabeling offers high sensitivity for protein detection.
  • Incorporation of radioactive amino acids is a key method.
  • It is ideal for visualizing proteins on 2-D gels.

Purpose of the Study:

  • To present protocols for in vivo radiolabeling.
  • To optimize labeling conditions for protein analysis.
  • To facilitate comparative proteomic studies using 2-D gel electrophoresis.

Main Methods:

  • In vivo radiolabeling using radioactive amino acids.
  • Optimization of labeling conditions.
  • Two-dimensional (2-D) gel electrophoresis for protein separation and visualization.

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Analysis of Protein Folding, Transport, and Degradation in Living Cells by Radioactive Pulse Chase
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From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia
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From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia

Published on: October 19, 2014

Related Experiment Videos

Last Updated: Jul 6, 2026

Selective Labelling of Cell-surface Proteins using CyDye DIGE Fluor Minimal Dyes
14:43

Selective Labelling of Cell-surface Proteins using CyDye DIGE Fluor Minimal Dyes

Published on: November 26, 2008

Analysis of Protein Folding, Transport, and Degradation in Living Cells by Radioactive Pulse Chase
08:59

Analysis of Protein Folding, Transport, and Degradation in Living Cells by Radioactive Pulse Chase

Published on: February 12, 2019

From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia
10:18

From a 2DE-Gel Spot to Protein Function: Lesson Learned From HS1 in Chronic Lymphocytic Leukemia

Published on: October 19, 2014

Main Results:

  • Established protocols for effective protein radiolabeling.
  • Demonstrated the utility of radiolabeling for protein sample comparison.
  • Enabled sensitive detection of proteins separated by 2-D gels.

Conclusions:

  • Radiolabeling is a valuable technique for sensitive protein detection and analysis.
  • The presented protocols support comparative proteomics using 2-D gel electrophoresis.
  • This method enhances protein visualization and quantification.