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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Arch Biochem Biophys. 2010 Sep 15;507(1):135–143. doi: 10.1016/j.abb.2010.09.006

Figure 3.

Figure 3

LC-MS/MS analysis of the tBPA-modified peptide 294SLFFAGTETTSTTLR308 showing that Thr302 is the tBPA-modified residue. Thr302 is marked with an asterisk. The predicted fragment ion series (b and y ions) for the singly charged ion at m/z 1805.4 are denoted as unlabeled and the fragment ions observed for the modified peptide are indicated as labeled. The observed fragment ions are MS/MS spectra of the doubly charged precursor ion at m/z 903.7 obtained in positive mode using the Xcalibur software. This figure was reproduced from Figure 6 of ref. [45] with permission from Molecular Pharmacology.