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Related Concept Videos

Protein-protein Interfaces02:04

Protein-protein Interfaces

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 polypeptide...
Protein Networks02:26

Protein Networks

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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Quantification of Protein Interaction Network Dynamics using Multiplexed Co-Immunoprecipitation
07:57

Quantification of Protein Interaction Network Dynamics using Multiplexed Co-Immunoprecipitation

Published on: August 21, 2019

Quality control methodology for high-throughput protein-protein interaction screening.

Alexei Vazquez1, Jean-François Rual, Kavitha Venkatesan

  • 1Department of Radiation Oncology, The Cancer Institute of New Jersey and UMDNJ-Robert Wood Johnson Medical School, New Brunswick, NJ, USA. vazquez@ias.edu

Methods in Molecular Biology (Clifton, N.J.)
|August 31, 2011
PubMed
Summary
This summary is machine-generated.

Understanding protein interaction networks is crucial for cell function and disease research. This study focuses on quantifying errors in high-throughput protein-protein interaction screens for improved accuracy.

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Published on: August 21, 2019

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08:38

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Mapping Dysfunctional Protein-Protein Interactions in Disease
09:39

Mapping Dysfunctional Protein-Protein Interactions in Disease

Published on: October 24, 2025

Area of Science:

  • Molecular Biology
  • Systems Biology
  • Bioinformatics

Background:

  • Protein-protein interactions (PPIs) are fundamental to cellular processes like structure, signaling, and metabolism.
  • Disruptions in PPIs can lead to diseases such as cancer and neurodegenerative disorders.
  • The protein interaction network (PIN) provides a framework for understanding biological functions and disease mechanisms.

Purpose of the Study:

  • To discuss methodologies for quantifying error rates in high-throughput PPI screens.
  • To improve the reliability of data generated from large-scale PPI experiments.
  • To enhance the accuracy of constructing protein interaction networks.

Main Methods:

  • Review of experimental methodologies for PPI screening.
  • Discussion of statistical approaches for error rate quantification.
  • Focus on quality control for high-throughput screening data.

Main Results:

  • High-throughput PPI screens are essential for mapping organism-wide interaction networks.
  • Experimental assays for PPIs are imperfect and require rigorous quality control.
  • Accurate quantification of error rates is critical for reliable PIN construction.

Conclusions:

  • Accurate mapping of protein interaction networks is vital for understanding cellular function and disease.
  • Methodologies for quantifying errors in high-throughput PPI screens are essential for data reliability.
  • Improved error quantification will advance our understanding of the molecular basis of human diseases.