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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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Updated: May 31, 2026

Phosphoproteomic Strategy for Profiling Osmotic Stress Signaling in Arabidopsis
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Phosphoproteomic Strategy for Profiling Osmotic Stress Signaling in Arabidopsis

Published on: June 25, 2020

Quantitative plant phosphoproteomics.

Kelli G Kline-Jonakin1, Gregory A Barrett-Wilt, Michael R Sussman

  • 1University of Wisconsin-Madison Biotechnology Center and Department of Biochemistry, 425 Henry Mall, Madison, WI 53706, USA.

Current Opinion in Plant Biology
|July 19, 2011
PubMed
Summary
This summary is machine-generated.

Plant protein phosphorylation, a key regulatory process, is now quantitatively measured using advanced mass spectrometry. This allows dynamic monitoring of phosphoproteome changes in response to environmental and genetic factors.

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Last Updated: May 31, 2026

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Area of Science:

  • Plant biology
  • Molecular biology
  • Biochemistry

Background:

  • Protein phosphorylation is a critical post-translational modification regulating plant cellular functions.
  • Early research focused on qualitative identification of phosphorylation sites.
  • Recent advances enable quantitative monitoring of phosphorylation dynamics.

Purpose of the Study:

  • To review current mass spectrometry technologies for quantitative plant phosphoproteomics.
  • To discuss the biological significance of observed phosphorylation changes.

Main Methods:

  • Untargeted mass spectrometry for broad phosphoproteome profiling.
  • Targeted mass spectrometry for focused quantitative analysis of specific phosphoproteins.
  • Quantitative mass spectrometric measurements for dynamic monitoring.

Main Results:

  • Quantitative approaches reveal dynamic changes in plant phosphoproteome.
  • These changes correlate with responses to genetic and environmental stimuli.
  • Mass spectrometry enables high-throughput phosphosite identification and quantification.

Conclusions:

  • Quantitative mass spectrometry is revolutionizing plant phosphoproteomics research.
  • Understanding dynamic phosphorylation is key to deciphering plant signaling pathways.
  • This field holds significant potential for agricultural and environmental applications.