Related Experiment Video
Updated: Aug 21, 2025

Label-Free Immunoprecipitation Mass Spectrometry Workflow for Large-scale Nuclear Interactome Profiling
Published on: November 17, 2019
Native DIGE for Quantitative and Functional Analysis of Protein Interactomes.
Diksha Dani1,2, Norbert A Dencher3
1Institut für Biochemie und Biologie, Universität Potsdam, Potsdam-Golm, Germany.
This study introduces Blue Native Difference Gel Electrophoresis, a novel method to quantify changes in protein abundance and activity within protein complexes. It is particularly useful for studying membrane proteins and their interactions.
Area of Science:
- Proteomics
- Biochemistry
- Molecular Biology
Background:
- Protein-protein interactions and multiprotein assemblies are fundamental to proteome function and heterogeneity.
- Understanding changes in protein abundance and activity requires considering these complex interactions.
- Quantifying these changes, especially for membrane proteins, presents significant challenges.
Purpose of the Study:
- To introduce and validate a new method for quantifying changes in protein abundance and activity.
- To specifically address the challenges of analyzing membrane protein complexes.
- To provide a tool for studying protein-protein interactions in response to physiological stimuli.
Main Methods:
- Development and application of Blue Native Difference Gel Electrophoresis (Blue Native DIGE).
- Utilizing electrophoresis-based approaches for visualization and quantification.
- Focusing on changes in protein abundance and activity within protein complexes.
Main Results:
- Blue Native Difference Gel Electrophoresis enables quantitative analysis of protein abundance and activity changes.
- The method effectively monitors quantitative changes in membrane proteins.
- It provides insights into protein-protein interactions within multiprotein assemblies.
Conclusions:
- Blue Native Difference Gel Electrophoresis is an advantageous method for studying protein complexes.
- This technique enhances the ability to quantify changes in both soluble and membrane protein interactions.
- It offers a valuable approach for comprehensive proteome analysis.
More Related Videos
08:38Genome-wide Protein-protein Interaction Screening by Protein-fragment Complementation Assay PCA in Living Cells
Published on: March 3, 2015
12:53Identification of Protein Interaction Partners in Mammalian Cells Using SILAC-immunoprecipitation Quantitative Proteomics
Published on: July 6, 2014
Related Concept Videos
Protein Networks
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein-protein Interfaces
Proteomics
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...