Figure 3From: Calculations of relative intensities of fragment ions in the MSMS spectra of a doubly charged penta-peptideGAVLK_C-OH_2 isomer. An example of a GAVLK penta-peptide isomer designated as GAVLK_C-OH_2. It is protonated at the amide oxygen in position 2 and at the amine group of the C-terminal lysine. Arrows point to the moving and sequestered protons.Back to article page