| Literature DB >> 1981823 |
M A Baldwin1, N Stahl, L G Reinders, B W Gibson, S B Prusiner, A L Burlingame.
Abstract
Permethylation of the glycan isolated from the glycoinositol phospholipid (GPI) anchor of the scrapie prion protein (PrPSc) trimethylates a free hexosamine to form a quarternary ammonium salt, substantially increasing the sensitivity for analysis by mass spectrometry. This derivatization induces specific fragmentation reactions in collision-induced dissociation spectra obtained on a four-sector tandem mass spectrometer, identifying the branching pattern of the PrPSc GPI glycan.Entities:
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Year: 1990 PMID: 1981823 DOI: 10.1016/0003-2697(90)90405-x
Source DB: PubMed Journal: Anal Biochem ISSN: 0003-2697 Impact factor: 3.365