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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: Peptides. 2007 Dec 5;29(2):186–195. doi: 10.1016/j.peptides.2007.09.022

Figure 2.

Figure 2

Molecular mass of conorfamide-Sr2. ESI-mass spectrum: the m/z signal at 1,469.7 indicates a monoisotopic mass of 1,468.70 Da for the native peptide. The signals at 1,425.7 and 1,381.7 correspond, respectively, to the monodecarboxylated and the didecarboxylated species generated during the mass spectrometry analysis. The signals at 1,485.6 and 1,441.7 correspond, respectively, to nondecarboxylated and monodecarboxylated species in which oxidation of Met-3 occurred during the purification process.