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Mol Cell Proteomics. 2015 Jul;14(7):1989-2001. doi: 10.1074/mcp.M114.044289. Epub 2015 May 11.

Global Proteomics Analysis of the Response to Starvation in C. elegans.

Author information

1
From the ‡Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee, Dow St, Dundee, United Kingdom, DD15EH.
2
From the ‡Centre for Gene Regulation and Expression, College of Life Sciences, University of Dundee, Dow St, Dundee, United Kingdom, DD15EH a.i.lamond@dundee.ac.uk a.gartner@dundee.ac.uk.

Abstract

Periodic starvation of animals induces large shifts in metabolism but may also influence many other cellular systems and can lead to adaption to prolonged starvation conditions. To date, there is limited understanding of how starvation affects gene expression, particularly at the protein level. Here, we have used mass-spectrometry-based quantitative proteomics to identify global changes in the Caenorhabditis elegans proteome due to acute starvation of young adult animals. Measuring changes in the abundance of over 5,000 proteins, we show that acute starvation rapidly alters the levels of hundreds of proteins, many involved in central metabolic pathways, highlighting key regulatory responses. Surprisingly, we also detect changes in the abundance of chromatin-associated proteins, including specific linker histones, histone variants, and histone posttranslational modifications associated with the epigenetic control of gene expression. To maximize community access to these data, they are presented in an online searchable database, the Encyclopedia of Proteome Dynamics (http://www.peptracker.com/epd/).

PMID:
25963834
PMCID:
PMC4587315
DOI:
10.1074/mcp.M114.044289
[Indexed for MEDLINE]
Free PMC Article

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