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A Tandem Liquid Chromatography–Mass Spectrometry-based Approach for Metabolite Analysis of Staphylococcus aureus
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TARDIS-based microbial metabolomics: time and relative differences in systems.

Catherine L Winder1, Warwick B Dunn, Royston Goodacre

  • 1Manchester Centre for Integrative Systems Biology, Manchester Interdisciplinary Biocentre, University of Manchester, 131 Princess Street, Manchester M1 7DN, UK.

Trends in Microbiology
|June 14, 2011
PubMed
Summary

Metabolomics uses labeled substrates to trace metabolic pathways in microbes. This technique quantifies the emergence of labeled products over time, aiding in understanding microbial metabolism and fluxomics.

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Area of Science:

  • Microbial metabolism
  • Systems biology
  • Biochemistry

Background:

  • Metabolomics is crucial for understanding microbial metabolic pathways, including anabolic and catabolic processes.
  • Elucidating metabolic dynamics in bacteria and fungi requires advanced analytical techniques.

Purpose of the Study:

  • To review the experimental application of isotopically labeled substrates in microbial metabolomics.
  • To explain time and relative differences in systems (TARDIS)-based analysis for metabolic studies.
  • To summarize the use of isotopes in pathway elucidation and metabolic flux determination (fluxomics).

Main Methods:

  • Feeding isotopically labeled substrates to microorganisms.
  • Measuring labeled products using mass spectrometry and nuclear magnetic resonance spectroscopy.
  • Performing mass isotopomer analysis (TARDIS-based analysis) to quantify temporal product emergence.

Main Results:

  • Demonstrates the capability of TARDIS-based analysis to track metabolic pathways.
  • Highlights the quantitative measurement of temporally sequential labeled products.
  • Shows how radioactive and stable isotopes facilitate pathway and fluxomics studies.

Conclusions:

  • Isotope-based metabolomics, particularly TARDIS analysis, is a powerful tool for microbial metabolism research.
  • This approach significantly advances the elucidation of metabolic pathways and the determination of metabolic flux.
  • The review provides an experimental perspective on applying these techniques in microbiology.