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. Author manuscript; available in PMC: 2011 Sep 30.
Published in final edited form as: J Phys Chem B. 2010 Sep 30;114(38):12406–12415. doi: 10.1021/jp1060123

Figure 5.

Figure 5

Cross section distributions for the [M + 9H]9+ charge state of electrosprayed ubiquitin ions obtained from OMS measurements. The OMS spectrum has been recorded from the ff to the 37·ff overtone. m indicates the harmonic frequency number allowing the ion transmission. Dashed lines indicate divisions for compact, partially folded, and elongated conformational states. Four conformations (labeled A, B, C and D, Ω= 1417, 1508, 1612, and 1741 Å2, respectively) have been chosen to simulate structural transitions (see Figure 6 and the text for details).