The inherent heterogeneity of many protein assemblies complicates characterization of their structure and dynamics, as most biophysical techniques require homogeneous preparations of isolated components. For this reason, quantitative studies of the molecular chaperone αB-crystallin, which populates a range of interconverting oligomeric states, have been difficult, and the physicochemical basis for its polydispersity has remained unknown. Here, we perform mass spectrometry experiments to study...Expand abstract
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αB-crystallin polydispersity is a consequence of unbiased quaternary dynamics.
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