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Related Concept Videos

Protein Networks02:26

Protein Networks

3.9K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
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,...
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Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Related Experiment Video

Updated: Jun 20, 2025

Identification of Protein Interaction Partners in Mammalian Cells Using SILAC-immunoprecipitation Quantitative Proteomics
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Identification of RVFV Host Factors Using Quantitative Interaction Proteomics.

Lucas Wilken1, Lisa Lasswitz2, Pietro Scaturro3

  • 1Leibniz Institute of Virology (LIV), Hamburg, Germany.

Methods in Molecular Biology (Clifton, N.J.)
|July 22, 2024
PubMed
Summary

This study details affinity enrichment coupled with liquid chromatography-tandem mass spectrometry (AE-LC-MS/MS) for analyzing Rift Valley fever virus (RVFV) interactions. It provides a workflow and critical considerations for designing these complex experiments.

Keywords:
Affinity enrichmentBottom-up proteomicsImmunoprecipitationMass spectrometryProteinProtein purificationVirushost interactionprotein interaction

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Area of Science:

  • Virology
  • Proteomics
  • Biochemistry

Background:

  • Rift Valley fever virus (RVFV) infection involves intricate virus-host protein-protein interactions.
  • Understanding these interactions is crucial for developing antiviral strategies.
  • Existing methods may not fully capture the complexity of these interactions.

Purpose of the Study:

  • To describe a detailed workflow for affinity enrichment coupled with liquid chromatography-tandem mass spectrometry (AE-LC-MS/MS).
  • To enable comprehensive studies of virus-host protein-protein interactions involving RVFV.
  • To outline critical considerations for designing and performing AE-LC-MS/MS experiments.

Main Methods:

  • Affinity enrichment coupled with liquid chromatography-tandem mass spectrometry (AE-LC-MS/MS).
  • Sample preparation, processing, and cleanup protocols.
  • Experimental design with appropriate controls for AE-LC-MS/MS.

Main Results:

  • A comprehensive workflow for AE-LC-MS/MS is presented.
  • Critical factors for successful AE-LC-MS/MS experiments are identified.
  • The method is applicable to cells and tissues infected with RVFV or expressing RVFV proteins.

Conclusions:

  • AE-LC-MS/MS is a powerful technique for studying RVFV-host protein interactions.
  • Careful experimental design and execution are essential for reliable results.
  • This workflow facilitates a deeper understanding of RVFV pathogenesis and host responses.