The fragmentation pathways of protonated peptides are reviewed in the present paper
paying special attention to classification of the known fragmentation channels into a simple …

Protein identification and peptide sequencing by tandem mass spectrometry requires
knowledge of how peptides fragment in the gas phase, specifically which bonds are broken …

The influence of acid− base interactions on the gas-phase dissociation of a series of
protonated peptides was investigated. Peptides containing both acidic residues [aspartic …

Collision-induced dissociation (CID) is a common ion activation technique used to energize
mass-selected peptide ions during tandem mass spectrometry. Characteristic fragment ions …

The gas-phase structures of the protonated pentapeptide Leu-enkephalin and its main
collision-induced dissociation (CID) product ions, b 4 and a 4, are investigated by means of …

Over the last 20 years, biological MS has changed out of all recognition. This is primarily due
to the development in the 1980s of 'soft ionization'methods that permit the ionization and …

This study focuses on the molecular level interpretation of the selective gas-phase cleavage
at aspartic acid residues (Asp) in protonated peptides. A ϕ3P+ CH2C (O)-group (ϕ= 2, 4, 6 …

Modern soft ionization techniques readily produce protonated or multiply protonated
peptides. Collision‐induced dissociation (CID) of these protonated species is often used as …

The gas-phase structures and fragmentation pathways of the N-terminal b and a fragments
of YAGFL-NH2, AGLFY-NH2, GFLYA-NH2, FLYAG-NH2, and LYAGF-NH2 were investigated …

The dissociation of the amide (peptide) bond in protonated peptides,[M+ H]+, is discussed in
terms of the structures and energetics of the resulting N‐terminal bn and C‐terminal yn …