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Related Concept Videos

Protein Networks02:26

Protein Networks

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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.
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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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Proteomics01:33

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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
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Updated: May 5, 2026

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Interactomics: Dissecting Protein Networks in Living Systems.

Carlos M Farinha1, Francisco Rodrigues Pinto2, João A I Miranda2

  • 1BioISI-Biosystems & Integrative Sciences Institute & Department of Chemistry and Biochemistry, Faculty of Sciences, Universidade de Lisboa, Lisbon, Portugal. cmfarinha@fc.ul.pt.

Advances in Experimental Medicine and Biology
|May 3, 2026
PubMed
Summary
This summary is machine-generated.

Interactomics studies protein-protein interactions within cells. This chapter reviews experimental and computational methods, databases, and efforts to map the human interactome.

Keywords:
Affinity purificationInteractomeInteractomicsProtein interaction databasesProtein-protein interactionsProximity labelingYeast two-hybrid

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Area of Science:

  • Molecular Biology
  • Bioinformatics
  • Systems Biology

Background:

  • Interactomics seeks to comprehensively identify and characterize all protein-protein interactions within biological systems.
  • Understanding these interactions is crucial for deciphering cellular functions and disease mechanisms.

Purpose of the Study:

  • To review experimental and computational approaches for assessing protein-protein interactions.
  • To discuss the applicability, advantages, and disadvantages of various interactomic methods.
  • To present available databases for protein-protein interaction data and summarize human interactome mapping efforts.

Main Methods:

  • Experimental techniques such as yeast two-hybrid, co-immunoprecipitation, and mass spectrometry.
  • Computational approaches including structure-based prediction and network analysis.
  • Database mining and integration of diverse data sources.

Main Results:

  • A comprehensive overview of current interactomic methodologies is provided.
  • Comparative analysis highlights the strengths and limitations of different experimental and computational strategies.
  • Key databases and resources for exploring protein-protein interactions are cataloged.

Conclusions:

  • The chapter offers a valuable resource for researchers navigating the complexities of interactomics.
  • It emphasizes the importance of integrating diverse methods for a complete understanding of the interactome.
  • Current progress and future directions in mapping the human interactome are summarized.