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An informatic framework for decoding protein complexes by top-down mass spectrometry
Skinner, Owen S.; Havugimana, Pierre C.; Haverland, Nicole A.; Fornelli, Luca; Early, Bryan P.; Greer, Joseph B.; Fellers, Ryan T.; Durbin, Kenneth R.; Do Vale, Luis H. F.; Melani, Rafael D.; Seckler, Henrique S.; Nelp, Micah T.; Belov, Mikhail E.; Horning, Stevan R.; Makarov, Alexander A.; LeDuc, Richard D.; Bandarian, Vahe; Compton, Philip D.; Kelleher, Neil L.
Keywords:Native Mass Spectrometry, Proteomics, Protein Complexes
Efforts to map the human protein interactome have resulted in information about thousands of multi-protein assemblies housed in public repositories, but the molecular characterization and stoichiometry of their protein subunits remains largely unknown. Here, we report a computational search strategy for hierarchical top-down analysis, identification, and scoring of multi-proteoform complexes by native mass spectrometry.
