Stable-isotope labeling with amino acids in nematodes
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Updated: May 29, 2026

Stable Isotopic Profiling of Intermediary Metabolic Flux in Developing and Adult Stage Caenorhabditis elegans
Published on: February 27, 2011
Mark Larance1, Aymeric P Bailly, Ehsan Pourkarimi
1Wellcome Trust Centre for Gene Regulation and Expression, University of Dundee, Dundee, UK.
Abstract:
We describe an approach for accurate quantitation of global protein dynamics in Caenorhabditis elegans. We adapted stable-isotope labeling with amino acids in cell culture (SILAC) for nematodes by feeding worms a heavy lysine- and heavy arginine-labeled Escherichia coli strain and report a genetic solution to elminate the problem of arginine-to-proline conversion. Combining our approach with quantitative proteomics methods, we characterized the heat-shock response in worms.
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