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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: J Proteome Res. 2013 Jan 2;12(2):743–752. doi: 10.1021/pr300805f

Figure 5.

Figure 5

MS/MS fragmentation spectra of masked orcokinin NFDEIDRSSFGFA ([M+H]+ = m/z 1504.67) identified using Waters PepSeq algorithm. a) MS/MS of PO tissue extract treated with Stabilizor T1. b) MS/MS of PO tissue extract treated with boiling. Both tissue samples were extracted with DMF. The [M+H]+ ion is correctly identified in the Stabilizor T1 treated sample with a PepSeq score of 403 whereas the [M+H]+ ion is incorrectly identified in the boiled tissue extract resulting in a PepSeq score of 260.