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Related Concept Videos

Proteomics01:33

Proteomics

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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.
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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Mechanical Protein Functions01:58

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Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
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Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
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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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Probing High-density Functional Protein Microarrays to Detect Protein-protein Interactions
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Finding functional microproteins.

Sikandar Azam1, Feiyue Yang1, Xuebing Wu1

  • 1Department of Medicine and Department of Systems Biology, Columbia University Irving Medical Center, New York, NY 10032, USA.

Trends in Genetics : TIG
|January 3, 2025
PubMed
Summary
This summary is machine-generated.

Researchers discovered over 1000 human microproteins essential for cell proliferation. Understanding these small proteins

Keywords:
CRISPR screenfunctional microproteinlncRNAnoncanonical ORFshort ORF

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Area of Science:

  • Molecular Biology
  • Genomics
  • Proteomics

Background:

  • Thousands of human microproteins are synthesized but often overlooked in functional studies.
  • The functional relevance of most microproteins remains poorly understood.
  • Studying low-abundance, unstable microproteins is challenging due to their complex roles.

Purpose of the Study:

  • To review recent advances in functional genomics for microprotein discovery.
  • To highlight the discovery of >1000 human microproteins crucial for cell proliferation.
  • To discuss the potential of microproteins in physiology, disease, and therapeutics.

Main Methods:

  • Genome-wide translational profiling.
  • Functional genomics approaches.
  • Technological innovations in protein studies.

Main Results:

  • Discovery of over 1000 human microproteins essential for optimal cell proliferation.
  • Identification of microproteins playing critical roles in cellular processes.
  • Advances in understanding microprotein synthesis and function.

Conclusions:

  • Microproteins are increasingly recognized for their critical roles in cellular functions.
  • Ongoing technological advancements will further elucidate microprotein functions.
  • Microproteins represent a promising area for future therapeutic exploration.