This is to integrate a novel combination of mass spectrometry (MS)-based experiments with protein assembly modelling and bioinformatics tools for studying the structural dynamics of transient protein complexes. Structural data generated from MS – native MS, ion mobility (IM)-MS and hydrogen deuterium exchange (HDX)-MS - will be encoded into modelling restraints and subsequently analysed by protein-protein interaction networks for building 3D protein assembly models. We will validate our method on a benchmark of heteromeric complexes with known crystal structures and use it to characterize the assembly dynamics of the recently discovered antiviral defense system, clustered regularly interspaced palindromic repeats (CRISPR) complex.
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