Authors: Ewing, Rob M; Chu, Peter; Elisma, Fred; Li, Hongyan; Taylor, Paul; Climie, Shane; McBroom-Cerajewski, Linda; Robinson, Mark D; O'Connor, Liam; Li, Michael; Taylor, Rod; Dharsee, Moyez; Ho, Yuen; Heilbut, Adrian; Moore, Lynda; Zhang, Shudong; Ornatsky, Olga; Bukhman, Yury V; Ethier, Martin; Sheng, Yinglun; Vasilescu, Julian; Abu-Farha, Mohamed; Lambert, Jean-Philippe; Duewel, Henry S; Stewart, Ian I; Kuehl, Bonnie; Hogue, Kelly; Colwill, Karen; Gladwish, Katharine; Muskat, Brenda; Kinach, Robert; Adams, Sally-Lin; Moran, Michael F; Morin, Gregg B; Topaloglou, Thodoros; Figeys, Daniel
Abstract: Mapping protein-protein interactions is an invaluable tool for understanding protein function. Here, we report the first large-scale study of protein-protein interactions in human cells using a mass spectrometry-based approach. The study maps protein interactions for 338 bait proteins that were selected based on known or suspected disease and functional associations. Large-scale immunoprecipitation of Flag-tagged versions of these proteins followed by LC-ESI-MS/MS analysis resulted in the identification of 24,540 potential protein interactions. False positives and redundant hits were filtered out using empirical criteria and a calculated interaction confidence score, producing a data set of 6463 interactions between 2235 distinct proteins. This data set was further cross-validated using previously published and predicted human protein interactions. In-depth mining of the data set shows that it represents a valuable source of novel protein-protein interactions with relevance to human diseases. In addition, via our preliminary analysis, we report many novel protein interactions and pathway associations.
Keywords: Humans; Immunoprecipitation; Protein Binding; Proteins/*metabolism; Spectrometry, Mass, Electrospray Ionization/*methods|
Journal: Mol Syst Biol Volume: 3 Pages: 89 Date: Jan. 1, 2007 PMID: 17353931 |
Ewing, Rob M, Chu, Peter, Elisma, Fred, Li, Hongyan, Taylor, Paul, Climie, Shane, McBroom-Cerajewski, Linda, Robinson, Mark D, O'Connor, Liam, Li, Michael, Taylor, Rod, Dharsee, Moyez, Ho, Yuen, Heilbut, Adrian, Moore, Lynda, Zhang, Shudong, Ornatsky, Olga, Bukhman, Yury V, Ethier, Martin, Sheng, Yinglun, Vasilescu, Julian, Abu-Farha, Mohamed, Lambert, Jean-Philippe, Duewel, Henry S, Stewart, Ian I, Kuehl, Bonnie, Hogue, Kelly, Colwill, Karen, Gladwish, Katharine, Muskat, Brenda, Kinach, Robert, Adams, Sally-Lin, Moran, Michael F, Morin, Gregg B, Topaloglou, Thodoros, Figeys, Daniel (2007) Large-scale mapping of human protein-protein interactions by mass spectrometry. Mol Syst Biol 3: 89.
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