Figure 1From: The yeast ISN1 (YOR155c) gene encodes a new type of IMP-specific 5'-nucleotidasePartial spectrum of PSD fragment ions obtained from m/z 1479.76 precursor ion. Masses of N-terminal ion series of the b and a type [12] are in agreement with the modified sequence Acetyl-SSRYRVEYHK. His and Tyr immonium ions, as well as C-terminal ions (y type) confirm the sequence of the modified peptide.Back to article page