Fragmentation pathways of protonated peptides

B Paizs, S Suhai - Mass spectrometry reviews, 2005 - Wiley Online Library
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 …

Reactions of polypeptide ions with electrons in the gas phase

RA Zubarev - Mass spectrometry reviews, 2003 - Wiley Online Library
Abstract I. Introduction 58 A. Challenges in the Gas‐Phase Fragmentation of Polypeptides
58 B. Ion–Electron Interactions 58 C. Nomenclature 59 II. Instrumental Realization and …

To b or not to b: the ongoing saga of peptide b ions

AG Harrison - Mass spectrometry reviews, 2009 - Wiley Online Library
Modern soft ionization techniques readily produce protonated or multiply protonated
peptides. Collision‐induced dissociation (CID) of these protonated species is often used as …

Fragmentation mechanisms of α-amino acids protonated under electrospray ionization: a collisional activation and ab initio theoretical study

F Rogalewicz, Y Hoppilliard, G Ohanessian - International Journal of Mass …, 2000 - Elsevier
The ionic complexes formed by electrospray of methanol/water solutions of all the α amino
acids (AA) were studied by collisional activation in a triple quadrupole mass spectrometer …

Dissociation of the peptide bond in protonated peptides

MJ Polce, D Ren, C Wesdemiotis - Journal of Mass …, 2000 - Wiley Online Library
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 …

Amide bond dissociation in protonated peptides. Structures of the N-terminal ionic and neutral fragments

MJ Nold, C Wesdemiotis, T Yalcin… - International Journal of …, 1997 - Elsevier
Three-stage tandem mass spectrometry (MS3) and neutral fragment reionization (NfR) are
utilized to investigate the structures of the N-terminal ionic (bi) and neutral backbone …

Direct dynamics simulations of collision-and surface-induced dissociation of N-protonated glycine. Shattering fragmentation

SO Meroueh, Y Wang, WL Hase - The Journal of Physical …, 2002 - ACS Publications
Direct dynamics classical trajectory simulations are used to study energy transfer and
unimolecular dissociation in collisions of N-protonated glycine,(gly-H)+, with an argon atom …

A mass spectrometric and ab initio study of the pathways for dehydration of simple glycine and cysteine-containing peptide [M+ H]+ ions

GE Reid, RJ Simpson, RAJ O'Hair - Journal of the American Society for …, 1998 - Springer
The gas phase fragmentation reactions of the [M+ H]+ and [M+ H− H 2 O]+ ions of
glycylglycine, glycylcysteine, N-acetylglycine, N-acetylcysteine, their corresponding methyl …

Structure and fragmentation of b2 ions in peptide mass spectra

AG Harrison, IG Csizmadia, TH Tang - Journal of the American Society for …, 2000 - Springer
In a number of cases the b 2 ion observed in peptide mass spectra fragments directly to the
a 1 ion. The present study examines the scope of this reaction and provides evidence as to …

Proton mobility in protonated glycylglycine and N‐formylglycylglycinamide: a combined quantum chemical and RKKM study

B Paizs, IP Csonka, G Lendvay… - … Communications in Mass …, 2001 - Wiley Online Library
Theoretical model calculations were performed to investigate the degree of validity of the
mobile proton model of protonated peptides. The structures and energies of the most …