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Does a Charge Tag Really Provide a Fixed Charge?
Author(s) -
He Yi,
Reilly James P.
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200705048
Subject(s) - charge (physics) , dissociation (chemistry) , ion , ammonium , proton , chemistry , physics , nuclear physics , particle physics , organic chemistry
Tag along for the ride : A peptide derivatized with a quaternary ammonium charge tag is collisionally dissociated. Observation of both N‐ and C‐terminal fragment ions demonstrates that a mobilized proton is produced during the dissociation process (see scheme).