Positive and negative ion FAB mass spectrometry were found to be useful for the structural analysis of phosphorylated peptides containing multiple O-phosphoseryl residues. The positive ion FAB mass spectra obtained for Ac-Ser(P)-Ser(P)-NHMe and Ac-Ser(P)-Ser(P)-Ser(P)-NHMe showed that [3-eliminative
Analysis of peptides with unusual structural features by fast atom bombardment mass spectrometry: Protease inhibitors
β Scribed by Malcolm E. Rose; Mark C. Prescott; Anna H. Wilby; Ian J. Galpin
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- English
- Weight
- 754 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1076-5174
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Negative ion fast atom bombardment mass spectrornetry is used to verify the sequence of olΒ‘godeoxyri~nucleotides containing a single modified nucleotide. Both the position in the sequence and the rnolecular weight of the modified nucleotide can be determined from the 3 and 5'-phosphate sequence ions