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Related Experiment Video

Updated: May 7, 2026

An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis
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An Aquatic Microbial Metaproteomics Workflow: From Cells to Tryptic Peptides Suitable for Tandem Mass Spectrometry-based Analysis

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Sample preparation and processing for planktonic microbial community proteomics.

Robert M Morris1, Brook L Nunn

  • 1School of Oceanography, University of Washington, Seattle, Washington, USA.

Methods in Enzymology
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

Community proteomics uses tandem mass spectrometry (MS) to identify proteins and functions in marine environments. This study details methods for planktonic sample collection, preparation, and processing for tandem MS analysis.

Keywords:
ArchaeaBacteriaMetaproteomicsPlanktonProteomics

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Area of Science:

  • Marine biology
  • Proteomics
  • Biotechnology

Background:

  • Community proteomics identifies expressed proteins and functions in environmental samples.
  • Tandem mass spectrometry (MS) and sequencing are key technologies in this field.
  • Understanding marine microbial functions is crucial for environmental science.

Purpose of the Study:

  • To outline methods for planktonic community proteomics using tandem MS.
  • To facilitate the study of expressed proteins in marine microbial communities.
  • To support research on physiological responses to environmental conditions.

Main Methods:

  • Bottom-up tandem MS generates peptide fragmentation spectra.
  • Spectra are searched against genomic or metagenomic databases for protein identification.
  • Focus on sample collection, preparation, and processing for planktonic samples.

Main Results:

  • Community proteomics verifies key bacterial and archaeal functions like nutrient transport and carbon fixation.
  • Reveals spatial and temporal shifts in microbial community functions.
  • Demonstrates the utility of tandem MS in marine ecological studies.

Conclusions:

  • Standardized methods are essential for reliable planktonic community proteomics.
  • Tandem MS-based approaches provide insights into marine microbial ecology.
  • This work supports the advancement of marine environmental monitoring and research.