FIGURE 3.
Fragment ions from the MS/MS spectrum obtained from the 3+ (m/z 565. 66) and 2+ (m/z 847.98) molecular ions from the 17-amino acid mutated AspN peptide αA6 (47DLSHGSAQVKG(I/L)58GKKVA63) showing the His to Leu or Ile substitution in αX.
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