@article{7094,
  author = {S. Molesworth and C. M. Leavitt and G. S. Groenewold and J. Oomens and J. D. Steill and M. Van Stipdonk},
  title = {Spectroscopic Evidence for Mobilization of Amide Position Protons During CID of Model Peptide Ions},
  abstract = {Infrared multiple photon dissociation (IRMPD) spectroscopy was used to study formation of b(2)(+) from nicotinyl-glycine-glycine-methyl ester (NicGGOMe). IRMPD shows that NicGGOMe is protonated at the pyridine ring of the nicotinyl group, and more importantly, that b(2)(+) from NicGGOMe is not protonated at the oxazolone ring, as would be expected if the species were generated on the conventional b(n)(+)/y(n)(+) oxazolone pathway, but at the pyridine ring instead. IRMPD data support a hypothesis that formation of b(2)(+) from NicGGOMe involves mobilization and transfer of an amide position proton during the fragmentation reaction. (J Am Soc Mass Spectrom 2009, 20, 1841-1845) (C) 2009 Published by Elsevier Inc. on behalf of American Society for Mass Spectrometry},
  year = {2009},
  journal = {Journal of the American Society for Mass Spectrometry},
  volume = {20},
  number = {10},
  pages = {1841-1845},
  month = {Oct},
  isbn = {1044-0305},
  url = {<Go to ISI>://000271037300008 },
  note = {ISI Document Delivery No.: 509RYTimes Cited: 0Cited Reference Count: 37},
  language = {English},
}