Supplementary Figure 5: Resolving IgG oligomers based on single ion intensities.

A Conventional native MS spectrum of IgG1-RGY. B Detailed view of the spectrum in A, showing the exact overlap between two charge states from the trimer (42+) and tetramer (56+) distributions at 10,649 m/z. C Single particle CD-MS spectrum of IgG1-RGY. D. Detailed view of the same region as in B, showing complete resolution of the coinciding trimer and tetramer charge states in the intensity dimension.