Nomenclature mass-spectral fragmentation

Table 5.5 Nomenclature of the ions formed in the mass spectral fragmentation of polypeptides. From Chapman, J. R. (Ed.), Protein and Peptide Analysis by Mass Spectrometry, Methods in Molecular Biology, Vol. 61, 1996. Reproduced by permission of Humana Press, Inc. 

Figure 4.4 Nomenclature for mass spectral fragmentation of oligosaccharides.

Similar techniques were used for determining the structures of unknown peptides and proteins but in these cases the individual peptides were isolated and the primary sequence determined. The mass spectral fragmentation of peptides occurs principally at the peptide linkages and can give rise to six fragment ion types. A nomenclature for this fragmentation (see... 

Fig. 3. Mass spectral nomenclature for fragment ions from oligosaccharide derivatives.

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