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 …

Under appropriate conditions, the kinetics of the dissociation of molecular cluster ions can
yield relative, but quantitative, thermochemical information on the constituent species …

Open searching has proven to be an effective strategy for identifying both known and
unknown modifications in shotgun proteomics experiments. Rather than being limited to a …

Protonated amino acids and derivatives RCH (NH2) C (+ O) X· H+ (X= OH, NH2, OCH3) do
not form stable acylium ions on loss of HX, but rather the acylium ion eliminates CO to form …

Studies on the applications, energetics, and mechanisms of charge‐remote fragmentations
are reviewed, with emphasis given to those articles published after 1992. Independent of the …

The unimolecular and low energy collision-induced fragmentation reactions of the MH+ ions
of N-acetyl-tri-alanine, N-acetyl-tri-alanine methyl ester, N-acetyl-tetra-alanine, tetra-alanine …

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 analysis of peptide derivatives by fast atom bombardment, liquid secondary‐ionization
mass spectrometry, plasma desorption, electrospray ionization, and matrix‐assisted laser …

Presently different opinions exist as to the degree of scrambling of amide hydrogens in
gaseous protonated peptides and proteins upon collisional activation in tandem mass …