Abstract

Methodology for determining amino acid sequences of proteins by tandem mass spectrometry is described. The approach involves enzymatic and/or chemical degradation of the protein to a collection of peptides which are then fractionated by high-performance liquid chromatography. Each fraction, containing as many as 10-15 peptides, is then analyzed directly, without further purification, by a combination of liquid secondary-ion/collision-activated dissociation mass spectrometry on a multianalyzer instrument. Interpretation of collision-activated dissociation mass spectra is described, and results are presented from a study of soluble peptides produced by treatment of apolipoprotein B with cyanogen bromide and trypsin.

Keywords

ChemistryCyanogen bromideMass spectrometryTandem mass spectrometryChromatographyTandem mass tagProtein mass spectrometryCollision-induced dissociationBottom-up proteomicsTop-down proteomicsTrypsinSample preparation in mass spectrometryIsobaric labelingPeptideCyanogenDissociation (chemistry)Peptide sequenceProteomicsBiochemistryEnzymeOrganic chemistryQuantitative proteomicsElectrospray ionization

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Year
1986
Type
article
Volume
83
Issue
17
Pages
6233-6237
Citations
1172
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Donald F. Hunt, John R. Yates, Jeffrey Shabanowitz et al. (1986). Protein sequencing by tandem mass spectrometry.. Proceedings of the National Academy of Sciences , 83 (17) , 6233-6237. https://doi.org/10.1073/pnas.83.17.6233

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DOI
10.1073/pnas.83.17.6233