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Characterization of Aspartic Acid and β‐Aspartic Acid in Peptides by Fast‐atom Bombardment Mass Spectrometry and Tandem Mass Spectrometry
Author(s) -
Castet S.,
Enjalbal C.,
Fulcrand P.,
Guichou J. F.,
Martinez J.,
Aubagnac J. L.
Publication year - 1996
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(199612)10:15<1934::aid-rcm756>3.0.co;2-6
Subject(s) - chemistry , aspartic acid , fast atom bombardment , mass spectrometry , tandem mass spectrometry , fragmentation (computing) , residue (chemistry) , chromatography , amino acid , organic chemistry , biochemistry , computer science , operating system
In this paper, we have shown that it is possible to differentiate an aspartic acid residue from its β‐aspartic acid isomer in dipeptides according to the characteristic fragmentation pathways, i.e. specific immonium ion formation and cleavages involving side‐chain atoms.