A deep XL-proteomic dataset of intact HEK293T cells using DSBSO

Cross-linking mass spectrometry is an emerging method to study protein-protein interactions (PPIs) in intact biological systems. Here, we optimized a workflow for gnerating high coverage maps of PPIs using the enrichable cross-linker Azide-A-DSBSO. This created one of the largest to-date XL-MS datasets, enabling structural characterization of thousands of PPIs in their intact subcellular environment.