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The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.

Identifying specific protein interaction partners using quantitative mass spectrometry and bead proteomes

Open access
Trinkle-Mulcahy, Laura, Boulon, Séverine, Lam, Yun Wah, Urcia, Roby, Boisvert, François-Michel, Vandermoere, Franck, Morrice, Nick A., Swift, Sam, Rothbauer, Ulrich, Leonhardt, Heinrich, Lamond, Angus·2008·The Journal of Cell Biology

Abstract

The identification of interaction partners in protein complexes is a major goal in cell biology. Here we present a reliable affinity purification strategy to identify specific interactors that combines quantitative SILAC-based mass spectrometry with characterization of common contaminants binding to affinity matrices (bead proteomes). This strategy can be applied to affinity purification of either tagged fusion protein complexes or endogenous protein complexes, illustrated here using the well-characterized SMN complex as a model. GFP is used as the tag of choice because it shows minimal nonspecific binding to mammalian cell proteins, can be quantitatively depleted from cell extracts, and allows the integration of biochemical protein interaction data with in vivo measurements using fluorescence microscopy. Proteins binding nonspecifically to the most commonly used affinity matrices were determined using quantitative mass spectrometry, revealing important differences that affect experimental design. These data provide a specificity filter to distinguish specific protein binding partners in both quantitative and nonquantitative pull-down and immunoprecipitation experiments.

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Metadata

Authors
Trinkle-Mulcahy, L., Boulon, S., Lam, Y. W., Urcia, R., Boisvert, F.-M., Vandermoere, F., Morrice, N. A., Swift, S., Rothbauer, U., Leonhardt, H., & Lamond, A.
Venue
The Journal of Cell Biology
Published
2008-10-20
Volume
183
Issue
2
Pages
223-239
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2015407064
Cited by
446
References
4
FWCI
13.99
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Identifying specific protein interaction partners using quantitative mass spectrometry and bead proteomes. https://app.cochat.ai/papers/10.1083/jcb.200805092
The paper
Trinkle-Mulcahy, L., Boulon, S., Lam, Y. W., Urcia, R., Boisvert, F.-M., Vandermoere, F., Morrice, N. A., Swift, S., Rothbauer, U., Leonhardt, H., & Lamond, A. (2008). Identifying specific protein interaction partners using quantitative mass spectrometry and bead proteomes. The Journal of Cell Biology. https://doi.org/10.1083/jcb.200805092

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.