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Global analysis of the yeast lipidome by quantitative shotgun mass spectrometry

Open access
Ejsing, Christer S., Sampaio, Julio L., Surendranath, Vineeth, Duchoslav, Eva, Ekroos, Kim, Klemm, Robin W., Simons, Kai, Shevchenko, Andrej·2009·Proceedings of the National Academy of Sciences

Abstract

Although the transcriptome, proteome, and interactome of several eukaryotic model organisms have been described in detail, lipidomes remain relatively uncharacterized. Using Saccharomyces cerevisiae as an example, we demonstrate that automated shotgun lipidomics analysis enabled lipidome-wide absolute quantification of individual molecular lipid species by streamlined processing of a single sample of only 2 million yeast cells. By comparative lipidomics, we achieved the absolute quantification of 250 molecular lipid species covering 21 major lipid classes. This analysis provided ≈95% coverage of the yeast lipidome achieved with 125-fold improvement in sensitivity compared with previous approaches. Comparative lipidomics demonstrated that growth temperature and defects in lipid biosynthesis induce ripple effects throughout the molecular composition of the yeast lipidome. This work serves as a resource for molecular characterization of eukaryotic lipidomes, and establishes shotgun lipidomics as a powerful platform for complementing biochemical studies and other systems-level approaches.

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Crossref · 10.1073/pnas.0811700106

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Metadata

Authors
Ejsing, C. S., Sampaio, J. L., Surendranath, V., Duchoslav, E., Ekroos, K., Klemm, R. W., Simons, K., & Shevchenko, A.
Venue
Proceedings of the National Academy of Sciences
Published
2009-02-17
Volume
106
Issue
7
Pages
2136-2141
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1984954439
Cited by
1,066
References
5
FWCI
30.38
Type
journal article
Language
en
Open access
green

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