Tyrosine derivatization and preparative purification of the sialyl and asialy-N-linked oligosaccharides from porcine fibrinogen.


The N-linked oligosaccharides from porcine fibrinogen were purified following their release from glycopeptides using N-glycosidase F. In separate experiments, both sialyl and asialyl oligosaccharides were prepared from 5 g of fibrinogen. The reducing oligosaccharides were reacted with ammonium bicarbonate to form/oligosaccharide-glycosylamines and then… (More)


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