Quantitative metaproteomics: Functional insights into microbial communities

Chongle Pan, Jillian F. Banfield

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Otherpeer-review

17 Citations (Scopus)

Abstract

Quantitative metaproteomics aims to accurately determine the relative abundances of thousands of proteins in a microbial community. This approach can be used to provide a comprehensive view of metabolic activities of organisms in microbial communities and uncover significant changes in protein expression between communities at different developmental stages, environment types or in response to different perturbations. Here, we describe three strategies for quantitative metaproteomics, including label-free, 15N metabolic labeling, and isobaric chemical labeling. The measurements are all based on a shotgun proteomics workflow involving proteolysis, two-dimensional liquid chromatogram-tandem mass spectrometry, and database searching against a metagenomic protein database. Quantitative metaproteomics was established and demonstrated using a model microbial community from acid mine drainage.

Original languageEnglish
Title of host publicationEnvironmental Microbiology
Subtitle of host publicationMethods and Protocols
EditorsIan T. Paulsen, Andrew J. Holmes
Place of PublicationNew York NY USA
PublisherHumana Press
Chapter18
Pages231-240
Number of pages10
Edition2nd
ISBN (Electronic)9781627037129
ISBN (Print)9781627037112
DOIs
Publication statusPublished - 2014
Externally publishedYes

Publication series

NameMethods in Molecular Biology
Volume1096
ISSN (Print)1064-3745
ISSN (Electronic)1940-6029

Keywords

  • Isobaric chemical labeling
  • Label-free
  • Liquid chromatography
  • Microbial community
  • Quantitative proteomics
  • Tandem mass spectrometry

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