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Related Concept Videos

MALDI-TOF Mass Spectrometry01:19

MALDI-TOF Mass Spectrometry

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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...
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Mass Spectrometry: Complex Analysis01:21

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Mass spectrometry is an important technique for the identification of pure compounds. However, it has some limitations for the analysis of complex mixtures, often due to excessive fragmentation making the spectrum too complicated to decipher. Mass spectrometry can be combined with suitable separation methods in sequence, forming hyphenated methods, which are useful in the analysis of complex mixtures.
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Peptide Identification Using Tandem Mass Spectrometry01:33

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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.
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Mass Spectrometry: Overview01:19

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Mass spectrometry is an analytical technique used to determine the molecular mass and molecular formula of a compound. The basic principle of mass spectrometry is to generate ions from the analyte molecule and measure these ion abundances against their molecular mass.  One common type of ionization, known as electrospray ionization or EI, bombards the analyte molecules in the gas phase with high-energy electron beams. The electron beams displace an electron from the molecule and leave...
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Proteomics01:33

Proteomics

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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.
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Updated: Jul 2, 2025

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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Mass Spectrometry Applications to Study Human Microbiome.

Mohamed A Raslan1, Sara A Raslan1, Eslam M Shehata1

  • 1Drug Research Centre, Cairo, Egypt.

Advances in Experimental Medicine and Biology
|February 27, 2024
PubMed
Summary
This summary is machine-generated.

Mass spectrometry (MS) aids in understanding human microbiota and their metabolites. This technique, combined with sequencing data, enhances the study of microbial communities and their functions.

Keywords:
Gut microbiotaMALDI-TOF MSMass spectrometryMetabolomicsMicrobiome

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Area of Science:

  • Microbiology
  • Metabolomics
  • Human Ecology

Background:

  • Microbiotas are integral to ecosystems, influencing human health and body chemistry.
  • Microorganisms produce metabolites that affect both their niche and distant body sites.

Purpose of the Study:

  • To provide foundational knowledge on untargeted mass spectrometry (MS) for microbiome studies.
  • To highlight data analysis methodologies and the integration of microbiome sequencing data.

Main Methods:

  • Utilizing mass spectrometry (MS) for detecting and identifying microbial metabolites.
  • Employing untargeted MS techniques to analyze microbiome data.
  • Integrating MS data with microbiome sequencing data.

Main Results:

  • MS is crucial for identifying microbial metabolites and understanding their functional roles.
  • Untargeted MS generates diverse data types applicable to microbiome research.
  • Integrative analysis, especially combining MS with sequencing, addresses data analysis challenges.

Conclusions:

  • Mass spectrometry (MS) revives culture methods for studying the human gut microbiota.
  • MS complements high-throughput sequencing by enabling the study of minor microbial populations.
  • Advanced data analysis and integration are key to unlocking microbiome insights.