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NeuCode labels for relative protein quantification
Journal article   Open access   Peer reviewed

NeuCode labels for relative protein quantification

Anna E Merrill, Alexander S Hebert, Matthew E MacGilvray, Christopher M Rose, Derek J Bailey, Joel C Bradley, William W Wood, Marwan El Masri, Michael S Westphall, Audrey P Gasch, …
Molecular & cellular proteomics, Vol.13(9), pp.2503-2512
09/2014
DOI: 10.1074/mcp.M114.040287
PMCID: PMC4159665
PMID: 24938287
url
https://doi.org/10.1074/mcp.M114.040287View
Published (Version of record) Open Access

Abstract

We describe a synthesis strategy for the preparation of lysine isotopologues that differ in mass by as little as 6 mDa. We demonstrate that incorporation of these molecules into the proteomes of actively growing cells does not affect cellular proliferation, and we discuss how to use the embedded mass signatures (neutron encoding (NeuCode)) for multiplexed proteome quantification by means of high-resolution mass spectrometry. NeuCode SILAC amalgamates the quantitative accuracy of SILAC with the multiplexing of isobaric tags and, in doing so, offers up new opportunities for biological investigation. We applied NeuCode SILAC to examine the relationship between transcript and protein levels in yeast cells responding to environmental stress. Finally, we monitored the time-resolved responses of five signaling mutants in a single 18-plex experiment.
Stress, Physiological - physiology Sodium Chloride - pharmacology Saccharomyces cerevisiae Proteins - metabolism Proteome Lysine - metabolism Proteomics - methods Saccharomyces cerevisiae Proteins - analysis Saccharomyces cerevisiae Proteins - drug effects

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