Stable-isotope labeling with amino acids in nematodes.

Larance, Mark; Bailly, Aymeric P; Pourkarimi, Ehsan; Hay, Ronald T; Buchanan, Grant; Coulthurst, Sarah; Xirodimas, Dimitris P; Gartner, Anton et al. · Nat Methods · 2011

basic_science · Level V

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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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