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. Author manuscript; available in PMC: 2009 Apr 1.
Published in final edited form as: J Proteome Res. 2008 Aug 14;7(10):4225–4236. doi: 10.1021/pr800044q

Figure 5.

Figure 5

Histograms showing the comparison of K9 modifications (unmodified, mono-, di- and trimethylation) observed in ECD generated c92+ ions (FIRRs) from the (A.) H3.2(1-50) and (B.) H3.3(1-50) polypeptides for all ten rat tissues as labeled. Fractional occupancy was determined from ECD spectra produced from the 8+ charge state species. Histograms depict the average of three independent biological samples (N=3) and standard deviations are shown as error bars.