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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...
MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

Mass spectrometry is a powerful characterization technique that can identify and separate a wide variety of compounds ranging from chemical to biological entities, based on their mass-to-charge ratio (m/z). The instruments that allow this detection, known as mass spectrometers, have three components: an ion source, a mass analyzer, and a detector. These spectrometers differ based on the nature of their ion source and analyzers.Matrix-assisted laser desorption ionization (MALDI) is a commonly...
Rapid Identification of Pathogens01:25

Rapid Identification of Pathogens

MALDI-TOF MS has transformed clinical microbiology by offering a rapid and reliable method for pathogen identification. The traditional approach to microbial identification typically involves time-consuming culture techniques and biochemical tests, which can delay the initiation of appropriate antimicrobial therapy. MALDI-TOF MS avoids these delays by using characteristic ribosomal protein mass patterns of microbial cells, enabling accurate species-level identification within minutes.Principle...
Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...

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Related Experiment Video

Updated: Jul 13, 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

Published on: September 15, 2015

Microbial proteomics: a mass spectrometry primer for biologists.

Robert Lj Graham1, Ciaren Graham, Geoff McMullan

  • 1School of Biomedical Sciences, University of Ulster, Coleraine, County Londonderry, BT52 1SA, UK. g.mcmullan@ulster.ac.uk.

Microbial Cell Factories
|August 19, 2007
PubMed
Summary

Microbial proteomics, using mass spectrometry, offers new insights into cellular function and metabolism. This field is advancing rapidly, enabling a systems biology approach to understanding microorganisms.

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A Clinical Metaproteomics Workflow Implemented within Galaxy Bioinformatics Platform to Analyze Host-Microbiome Interactions Underlying Human Disease
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Using the Open-Source MALDI TOF-MS IDBac Pipeline for Analysis of Microbial Protein and Specialized Metabolite Data
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Using the Open-Source MALDI TOF-MS IDBac Pipeline for Analysis of Microbial Protein and Specialized Metabolite Data

Published on: May 15, 2019

Area of Science:

  • Microbiology
  • Proteomics
  • Systems Biology

Background:

  • The post-genomic era utilizes transcriptomics and proteomics for deeper cellular understanding.
  • Advances in mass spectrometry and bioinformatics have significantly enhanced proteomic capabilities.
  • Microbial proteomics is crucial for linking protein networks to cellular phenotype and function.

Purpose of the Study:

  • To provide an overview of mass spectrometry (MS) for protein identification.
  • To describe methods for reducing sample complexity prior to MS analysis.
  • To illustrate microbial proteomics applications with a case study and discuss metaproteomics.

Main Methods:

  • Mass spectrometry (MS) for protein identification.
  • Gel-based and gel-free methodologies for sample preparation.
  • Bioinformatics and protein separation technologies.

Main Results:

  • Proteomics provides insights into microbial physiology and metabolism.
  • Enables the development of comprehensive cellular maps linking genomics to gene expression.
  • Demonstrates the power of microbial proteomics through case studies.

Conclusions:

  • Microbial proteomics is a rapidly advancing field with profound implications for microbial science.
  • Understanding analytical tools like MS is essential for microbiologists.
  • The integration of proteomics facilitates a systems biology approach to microorganisms.