Cited by 421Advanced Proteomics Techniques and ApplicationsLeptospirosis research and findingsMass Spectrometry Techniques and Applications

The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.

Proteome-wide cellular protein concentrations of the human pathogen Leptospira interrogans

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Abstract

Mass-spectrometry-based methods for relative proteome quantification have broadly affected life science research. However, important research directions, particularly those involving mathematical modelling and simulation of biological processes, also critically depend on absolutely quantitative data--that is, knowledge of the concentration of the expressed proteins as a function of cellular state. Until now, absolute protein concentration measurements of a considerable fraction of the proteome (73%) have only been derived from genetically altered Saccharomyces cerevisiae cells, a technique that is not directly portable from yeast to other species. Here we present a mass-spectrometry-based strategy to determine the absolute quantity, that is, the average number of protein copies per cell in a cell population, for a large fraction of the proteome in genetically unperturbed cells. Applying the technology to the human pathogen Leptospira interrogans, a spirochete responsible for leptospirosis, we generated an absolute protein abundance scale for 83% of the mass-spectrometry-detectable proteome, from cells at different states. Taking advantage of the unique cellular dimensions of L. interrogans, we used cryo-electron tomography morphological measurements to verify, at the single-cell level, the average absolute abundance values of selected proteins determined by mass spectrometry on a population of cells. Because the strategy is relatively fast and applicable to any cell type, we expect that it will become a cornerstone of quantitative biology and systems biology.

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Metadata

Authors
Malmström, J., Beck, M., Schmidt, A., Lange, V., Deutsch, E. W., & Aebersold, R.
Affiliations
  • ETH Zurich (CH)
  • Institute for Systems Biology (US)
  • University of Zurich (CH)
Corresponding author
Aebersold, Ruedi
Venue
Nature
Published
2009-07-15
Volume
460
Issue
7256
Pages
762-765
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2041852635
Cited by
421
References
33
Citations by year
2026: 5 · 2025: 5 · 2024: 10 · 2023: 9 · 2022: 13 · 2021: 11 · 2020: 17 · 2019: 17 · 2018: 28 · 2017: 20 · 2016: 28 · 2015: 23 · 2014: 35 · 2013: 37 · 2012: 60
FWCI
23.35
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • Lund University Publications (Lund University) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
  • National Institutes of Health (n01hv28179-12-0-0)
  • National Heart, Lung, and Blood Institute (N01 HV028179, N01-HV-28179)
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Health Sciences › Medicine › Infectious Diseases › Leptospirosis research and findings
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
Keywords
Leptospira interrogans, protein copy number, leptospirosis, cryo-electron tomography, quantitative proteomics, spirochetes
MeSH terms
Bacterial Proteins, Chromatography, High Pressure Liquid, Chromatography, Liquid, Humans, Leptospira interrogans, Mass Spectrometry, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Cryoelectron Microscopy, Proteome, Proteomics, Tandem Mass Spectrometry, Electron Microscope Tomography

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