Resolving Conformational Differences Between Species of the Same Mass
Two or more structurally distinct forms of an intact complex share the same mass, and they need to be told apart by shape rather than by mass alone.
References
- Ruotolo, B.T., Benesch, J.L.P., Sangtaryan, A., et al. "Ion Mobility-Mass Spectrometry." Nature Protocols 3, no. 7 (2008): 1139–1152.