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November 28, 2017
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The architecture of protein complexes is essential for their function. Combining various mass spectrometric techniques proved powerful to study their assembly. We provide protocols for chemical cross-linking and native mass spectrometry and show how these complementary techniques help to elucidate the architecture of multi-subunit protein assemblies.
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Chemical Cross-linkingMass SpectrometryIntact Protein ComplexesMulti-subunit Protein AssembliesStructural InformationCompositionConnectivityStoichiometryProtein Complex PurificationElectrophoresisCoomassie StainingProtein Band ExcisionDisulfide ReductionCysteine AlkylationTrypsin DigestionPeptide Extraction
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Haupt, C., Hofmann, T., Wittig, S., Kostmann, S., Politis, A., Schmidt, C. Combining Chemical Cross-linking and Mass Spectrometry of Intact Protein Complexes to Study the Architecture of Multi-subunit Protein Assemblies. J. Vis. Exp. (129), e56747, doi:10.3791/56747 (2017).
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