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. Author manuscript; available in PMC: 2012 Sep 2.
Published in final edited form as: J Proteome Res. 2011 Jul 28;10(9):4054–4065. doi: 10.1021/pr200258m

Fig. 5.

Fig. 5

Mapping cTnI phosphorylation sites by top-down MS with ECD. Fragmentation maps of pcTnI in (A) normal, (B) hypertrophic heart samples and (C) ppcTnI in normal heart samples. The identified phosphorylation site(s) of Ser22 in pcTnI and Ser22/23 in ppcTnI are highlighted in circles.