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. Author manuscript; available in PMC: 2008 Oct 6.
Published in final edited form as: J Am Soc Mass Spectrom. 2006 Aug 4;17(10):1469–1479. doi: 10.1016/j.jasms.2006.06.027

Figure 6.

Figure 6

ECD mass spectra of ubiquitin 8+ produced by ESI of 10−5 M bovine ubiquitin with 49.5/49.5/1, by volume water/methanol/acetic acid, and transmitted through the FAIMS device at CV values of (a) −4.7 and (b) −6.3 V. Residual precursor ion, reduced molecular ions, and prominent c and z fragment ions peaks are indicated. The inset shows the region from 1135−1175 m/z with fragment ions present in this region labeled. Many additional fragment ions are also present in the spectra but, for clarity, are not labeled.