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Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and signal-to-noise ratio for the analyte. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.
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Quantitative Mass Spectrometry-Based Proteomics: An Overview.

Svitlana Rozanova1,2, Katalin Barkovits1,2, Miroslav Nikolov3

  • 1Medizinisches Proteom-Center, Medical Faculty, Ruhr-University Bochum, Bochum, Germany.

Methods in Molecular Biology (Clifton, N.J.)
|May 5, 2021
PubMed
Summary
This summary is machine-generated.

Quantitative mass spectrometry is advancing protein research. This review covers current methods, challenges, and potential pitfalls in analyzing peptides, proteins, and proteomes for accurate quantification.

Keywords:
Absolute quantificationChemical labelingIsotope labelingLabel-freeMass spectrometryMetabolic labelingProteomicsRelative quantification

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Area of Science:

  • Proteomics
  • Analytical Chemistry
  • Biochemistry

Background:

  • Mass spectrometry (MS) has become a primary tool in protein research.
  • Qualitative protein analysis using MS is well-established.
  • Quantitative analysis of proteins and peptides by MS is a key area of development.

Purpose of the Study:

  • To review current strategies for quantitative mass spectrometry-based proteomics.
  • To discuss challenges and potential pitfalls in quantitative proteomic analysis.
  • To provide a survey of the emerging field of quantitative proteomics.

Main Methods:

  • Review of existing literature on quantitative mass spectrometry techniques.
  • Analysis of common themes and differences in quantitative approaches.
  • Identification of potential pitfalls in peptide, protein, and proteome quantification.

Main Results:

  • Several strategies exist for quantitative mass spectrometry-based proteomics.
  • Challenges remain in achieving accurate and reliable quantification.
  • Understanding common themes, differences, and pitfalls is crucial.

Conclusions:

  • Quantitative mass spectrometry is essential for modern protein research.
  • Further development is needed to overcome challenges in quantitative proteomics.
  • This review offers a comprehensive overview of the field.