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Related Concept Videos

Proteomics01:33

Proteomics

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 proteomics...

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Quantitative proteomics: a tool to assess cell differentiation.

Michiel Vermeulen1, Matthias Selbach

  • 1Department of Physiological Chemistry and Cancer Genomics Centre, University Medical Center Utrecht, Utrecht, The Netherlands. M.Vermeulen-3@umcutrecht.nl

Current Opinion in Cell Biology
|October 6, 2009
PubMed
Summary
This summary is machine-generated.

Quantitative proteomics enables genome-wide protein analysis, revealing crucial roles of histone modifications and RNA-binding proteins in cell differentiation and multicellular development.

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Area of Science:

  • Molecular Biology
  • Proteomics
  • Developmental Biology

Background:

  • Gene expression regulation is complex, involving transcription, post-translational histone modifications, and post-transcriptional control by RNA-binding proteins and microRNAs.
  • Transcription profiling alone offers an incomplete view of gene regulation during cellular processes like differentiation.
  • Understanding these multiple regulatory layers is vital for comprehending multicellular organism development.

Purpose of the Study:

  • To highlight the importance of post-translational histone modifications and post-transcriptional regulation in cell differentiation.
  • To showcase the utility of mass spectrometry-based quantitative proteomics for genome-wide protein-level analyses.
  • To explore the potential of quantitative proteomics in advancing the study of cell differentiation and development.

Main Methods:

  • Utilizing advances in mass spectrometry-based quantitative proteomics for large-scale protein analysis.
  • Analyzing genome-wide data at the protein level to capture regulatory events missed by transcription profiling.
  • Reviewing recent studies that employ proteomic approaches in developmental biology.

Main Results:

  • Post-translational histone modifications and RNA-binding proteins significantly influence cell differentiation.
  • Quantitative proteomics provides a comprehensive view of gene regulation across multiple levels.
  • Proteomic analyses are essential for a complete understanding of developmental processes.

Conclusions:

  • Quantitative proteomics is a powerful tool for investigating the multifaceted regulation of gene expression during cell differentiation.
  • This technology offers new avenues for studying the intricate mechanisms underlying the development of multicellular organisms.
  • Future research should leverage quantitative proteomics to further elucidate the roles of protein-level regulation in development.