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Related Concept Videos

Proteomics01:33

Proteomics

10.2K
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...
10.2K

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Related Experiment Video

Updated: Apr 15, 2026

Quantitative Phosphoproteomics in Fatty Acid Stimulated Saccharomyces cerevisiae
15:41

Quantitative Phosphoproteomics in Fatty Acid Stimulated Saccharomyces cerevisiae

Published on: October 12, 2009

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Why phosphoproteomics is still a challenge.

Fiorella A Solari1, Margherita Dell'Aica, Albert Sickmann

  • 1Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V., Otto-Hahn-Str. 6b, 44227 Dortmund, Germany. rene.zahedi@isas.de.

Molecular Biosystems
|March 25, 2015
PubMed
Summary
This summary is machine-generated.

Phosphoproteomics, a key tool in cell signaling research, faces persistent challenges like poor phosphopeptide recovery and quantification accuracy. Addressing these limitations is crucial for reliable qualitative and quantitative phosphoproteomic studies.

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A Mass Spectrometry-Based Approach to Identify Phosphoprotein Phosphatases and their Interactors
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Area of Science:

  • Proteomics
  • Biochemistry
  • Cell Biology

Background:

  • Phosphoproteomics is vital for understanding cell signaling pathways.
  • Despite advancements, significant challenges hinder its application.

Purpose of the Study:

  • To critically review current limitations in phosphoproteomics.
  • To highlight areas needing attention for improved qualitative and quantitative studies.

Main Methods:

  • Critical discussion of existing phosphoproteomics methodologies.
  • Analysis of common pitfalls in phosphopeptide enrichment and quantification.

Main Results:

  • Identified challenges include poor phosphopeptide recovery and stoichiometry assessment.
  • Limitations in label-free quantification and chromatographic behavior were discussed.
  • Peptide-centric limitations impacting overall study reliability were highlighted.

Conclusions:

  • Current phosphoproteomics methods require careful consideration of inherent limitations.
  • Addressing these challenges is essential for advancing phosphoproteomic research and data interpretation.