Proximity-enhanced SuFEx chemical cross-linker for specific and multitargeting cross-linking mass spectrometry

Chemical cross-linking mass spectrometry (CXMS) is being increasingly used to study protein assemblies and complex protein interaction networks. Existing CXMS chemical cross-linkers target only Lys, Cys, Glu, and Asp residues, limiting the information measurable. Here we report a “plant-and-cast” cr...

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