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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Biochim Biophys Acta. 2012 Oct 22;1834(6):1202–1209. doi: 10.1016/j.bbapap.2012.10.009

Figure 2.

Figure 2

Example of HXMS data from a region of IκBα collected using a quench-flow apparatus that allows rapid mixing and measurement of exchange after 10 msec. The mass spectra show incorporation of deuterons in times under 1 sec can be readily determined allowing the determination of how many amides are exchanging at the intrinsic rate indicating that they are in completely unstructured regions.