Tuinman A A, Pettit G R
Cancer Research Institute, Arizona State University, Tempe.
Int J Pept Protein Res. 1990 Oct;36(4):331-4. doi: 10.1111/j.1399-3011.1990.tb01290.x.
A new nomenclature is proposed that allows a precise and concise description of mass spectrometric fragments derived from peptides. The nomenclature differs from existing methods by specifically accommodating (1) extended or unusual amino acid residues, (2) cyclic- and cyclodepsipeptides, and (3) residues contained in branches of the main chain.