Premium
Fragmentation studies of peptides: The formation of Y ions
Author(s) -
Kenny Peter T. M.,
Nomoto Kyosuke,
Orlando Ron
Publication year - 1992
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/rcm.1290060205
Subject(s) - chemistry , fragmentation (computing) , ion , organic chemistry , computer science , operating system
The mechanism for the formation of y ions in the collision‐induced dissociation (CID) spectra of protonated peptides produced by fast‐atom bombardment was investigated by tandem mass spectrometry and deuterium labelling studies. The results show that a hydrogen atom attached to nitrogen and not to carbon migrates during cleavage of the amide bond. A mechanism based on these results is presented.