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Related Concept Videos

Proteomics01:33

Proteomics

7.2K
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.
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...
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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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Related Experiment Video

Updated: Jun 9, 2025

Author Spotlight: Advancing Structural and Biochemical Studies of Proteins Through Thermal Shift Assays
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Characterizing protein-protein interactions with thermal proteome profiling.

Brian C Searle1

  • 1Department of Biomedical Informatics, The Ohio State University Medical Center, Columbus, OH, 43210, USA; Pelotonia Institute for Immuno-Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, 43210, USA; Department of Chemistry and Biochemistry, The Ohio State University, Columbus, OH, 43210, USA.

Current Opinion in Structural Biology
|October 31, 2024
PubMed
Summary
This summary is machine-generated.

Thermal proteome profiling (TPP) is a mass spectrometry technique that measures protein thermal stability to identify protein interactions. TPP reveals transient and weak interactions, advancing disease research and therapeutic target discovery.

Keywords:
CETSAProteomicsTPPThermal shift assay

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Area of Science:

  • Biochemistry
  • Proteomics
  • Systems Biology

Background:

  • Protein-protein interactions (PPIs) are fundamental to cellular processes.
  • Traditional PPI detection methods often miss transient or weak interactions.
  • Understanding complex PPI networks is crucial for disease research.

Purpose of the Study:

  • To review current Thermal Proteome Profiling (TPP) methodologies.
  • To discuss challenges in interpreting TPP data.
  • To explore opportunities for improving PPI networks using TPP.

Main Methods:

  • Thermal Proteome Profiling (TPP) utilizes quantitative mass spectrometry.
  • Measures changes in protein thermal stability (melting temperatures).
  • Identifies protein interaction partners based on stability shifts.

Main Results:

  • TPP provides a comprehensive snapshot of proteome-wide interactions.
  • Effectively detects transient and weak protein-protein interactions.
  • Offers insights into complex biological networks.

Conclusions:

  • TPP is a powerful technique for mapping intricate protein interactions.
  • Advances understanding of the molecular basis of diseases.
  • Facilitates the discovery of novel therapeutic targets.