Oligomeric state and ATP binding to <em>E. coli</em> Rho measured by native MS

Mass photometry and mass spectrometry data of E. coli Rho helicase over a range of concentrations, and in the presence of varying ATP concentrations. Python script for fitting population data. Data show that Rho adopts multiple oligomeric states over the range of sampled conditions and that ATP binds variably to these oligomeric states.