Monosaccharides residue masses

TABLE A.5. The Masses of Some Monosaccharide Residues and Their Derivatives... 

Determination of oligosaccharide size is calculated from the mass of monosaccharide residues and the 2-AB label (Fig. 4.5.8). An example of the biantennary complex-type oligosaccharide is ... 

For ohgosaccharide size, the detected masses are compared to calculated molecular masses of variable ohgosaccharide moieties to determine the monosaccharide residues that are lacking in each patient (Fig. 4.5.9). 

V. Kovacik, J. Hirsch, P. Kovac, W. Heerma, J. Thomas-Oates, and J. Haverkamp, Oligosaccharide characterization using collision-induced dissociation fast atom bombardment mass spectrometry Evidence for internal monosaccharide residue loss, J. Mass Spectrom., 30 (1995) 949-958. 

L.P. Brilll, W. Heerma, J.E. Thomas-Oates, J. Haverkamp, V. Kovacik, P. Kovac, Loss of internal 1-6 substituted monosaccharide residues from underivatized and per-0-methylated trisaccharides, J. Am. Soc. Mass Spectrom., 8 (1997) 43. 

The mass spectra of permethylated pseudoaldobiouronic acids demonstrate that the principles for fragmentation just described are valid for this class of compound. Mass spectra have been recorded for 21 permethylated trisaccharides. The nature of the monosaccharide residues... 

A mass-spectrometric investigation of the antibiotics Paromomycin and Paromomycin II as their per(trimethylsilyl) derivatives has been made. A molecular ion was found in these tetrasaccharides containing amino sugars. The A-series of fragments was found to establish the sequence of the monosaccharide residues in the oligosaccharide. Essentially the same technique was used in a study of antibiotics from Streptomyces fradiae these were found to be tetrasaccharides containing an amino-deoxycyditol residue. " ... 

TABLE 6.5 Residue masses of common monosaccharides and their derivatives... 

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