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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...
Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
Methods to Assess Microbial Communities01:19

Methods to Assess Microbial Communities

Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...

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Related Experiment Video

Updated: May 22, 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 using mass spectrometry.

Harry B Hines1

  • 1Integrated Toxicology Division, United States Army Medical Research Institute of Infectious Diseases, Frederick, MD, USA. harry.hines@amedd.army.mil

Methods in Molecular Biology (Clifton, N.J.)
|May 29, 2012
PubMed
Summary
This summary is machine-generated.

This study outlines core proteomic techniques applicable across various subjects, focusing on bacterial proteomic analysis. It presents a quantitative method, discussing its potential, challenges, and emerging technologies for bacterial investigations.

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Evaluation of Microbial Safety of Dairies using Bacterial Proteomic Profiling via MALDI Approach

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Area of Science:

  • Proteomics
  • Microbiology
  • Mass Spectrometry

Background:

  • Proteomic analyses comprise complex, interconnected steps requiring careful coordination for optimal data acquisition.
  • Many proteomic steps are universal, adaptable to different study objectives with minor modifications.
  • This universality forms a foundational set of proteomic approaches applicable to diverse research subjects.

Purpose of the Study:

  • To provide an overview of core proteomic approaches, techniques, and instrumentation.
  • To illustrate the application of these proteomic concepts and techniques specifically to bacterial investigations.
  • To present a practical, quantitative method for bacterial proteomic analysis, including potential issues and advancements.

Main Methods:

  • Overview of fundamental proteomic strategies and mass spectrometry instrumentation.
  • Adaptation and application of general proteomic techniques for bacterial studies.
  • Development and presentation of a quantitative method for bacterial proteomic analysis.

Main Results:

  • Identification of common proteomic steps applicable to most research subjects.
  • Demonstration of how core proteomic techniques can be tailored for bacterial investigations.
  • Presentation of a quantitative method with an analysis of its feasibility, limitations, and future technological prospects.

Conclusions:

  • Core proteomic methodologies provide a versatile framework for diverse biological studies.
  • Specific adaptations enable the effective application of proteomic analysis to bacterial systems.
  • The presented quantitative method offers a valuable tool for bacterial proteomic research, highlighting areas for improvement and innovation.