Format

Send to

Choose Destination
FEBS J. 2007 Dec;274(24):6269-76. Epub 2007 Nov 16.

Analysis of proteins and peptides on a chromatographic timescale by electron-transfer dissociation MS.

Author information

1
Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA. klr6u@virginia.edu

Abstract

Peptide and protein sequence analysis using a combination of gas-phase ion-ion chemistry and tandem MS is described. Samples are converted to multiply charged ions by ESI and then allowed to react with fluoranthene radical anions in a quadrupole linear ion trap mass spectrometer. Electron transfer from the radical anion to the multiply charged peptide or protein promotes random fragmentation along the amide backbone that is independent of peptide or protein size, sequence, or the presence of post-translational modifications. Examples are provided that demonstrate the utility of electron-transfer dissociation for characterizing post-translational modifications and for identifying proteins in mixtures on a chromatographic timescale (500 ms/protein).

PMID:
18021239
PMCID:
PMC4625788
DOI:
10.1111/j.1742-4658.2007.06148.x
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Wiley Icon for PubMed Central
Loading ...
Support Center