Figure 4.

Identification of consensus peptide FAVETAITDVINAQR. The MS/MS spectrum of peptide FAVETAITDVINAQR which was specific to the splice variant of A. flavus UDP-glucose 4-epimerase [Entrez Gene: 7919639] resulted from a 2+ precursor ion at m/z 824.44 with a measured mass accuracy of 0.667 ppm. The MS spectrum showing a SILAC pair of 12C6-Arg (m/z = 824.44) and 13C6-Arg (m/z = 827.45) peptides with a 3 Da mass difference supported the identification, since an arginine appeared on the C terminus of the peptide sequence.

Chang and Muddiman BMC Genomics 2011 12:358   doi:10.1186/1471-2164-12-358
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