Structural modeling of heteromeric protein complexes from disassembly pathways and ion mobility-mass spectrometry.
Structure determination of macromolecular protein assemblies remains a challenge for well-established methods. Here, we provide an assessment of an emerging structural technique, ion mobility-mass spectrometry (IM-MS), and examine the use of collision cross-sections (CCSs), derived from IM-MS, as restraints for structure characterization of heteromeric protein assemblies. Using 15 complexes selected from the Protein Data Bank, we validate the use of low-resolution models by comparing their CC...Expand abstract
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