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Related Concept Videos

Proteomics01:33

Proteomics

7.0K
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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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.
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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Ligand Binding Sites02:40

Ligand Binding Sites

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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
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Updated: May 7, 2025

Identification of Small Molecule-binding Proteins in a Native Cellular Environment by Live-cell Photoaffinity Labeling
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Lighting Up and Identifying Metal-Binding Proteins in Cells.

Aliya Tiemuer1, Hongyu Zhao1, Jingxin Chen1

  • 1Department of Chemistry and HKU-CAS Joint Laboratory of Metallomics for Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, SAR, P.R. China.

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Fluorescence-based metalloproteomics visualizes and identifies metal-binding proteins in living cells. This approach advances understanding of metal ions in biology and medicine, aiding metallodrug development.

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Area of Science:

  • Biochemistry
  • Chemical Biology
  • Metallomics

Background:

  • Metal ions are crucial for biological processes and disease treatment.
  • Proteins and enzymes regulate metal homeostasis and metallodrug activity.
  • Understanding metal-binding proteins is key to elucidating metal-mediated biological functions.

Purpose of the Study:

  • To summarize fluorescence-based strategies for labeling and tracking metal-binding proteins.
  • To showcase applications of fluorescence-based metalloproteomics in metallobiology and chemical biology.
  • To discuss the potential and limitations of fluorescence-based metalloproteomics.

Main Methods:

  • Utilizing fluorescent probes for labeling and tracking metal-binding proteins.
  • Applying fluorescence microscopy and imaging techniques.
  • Reviewing existing literature and case studies.

Main Results:

  • Demonstrated the capability of fluorescence-based metalloproteomics for visualizing and identifying metal-binding proteins in living systems.
  • Highlighted successful applications in understanding metallobiology and chemical biology.
  • Provided a comprehensive overview of current methodologies and their utility.

Conclusions:

  • Fluorescence-based metalloproteomics is a powerful tool for studying metal-binding proteins.
  • Future directions include developing advanced fluorescent probes and integrating with other omics approaches.
  • Super-resolution imaging techniques offer promising avenues for future metalloproteomics research.