α2-3 Neuraminidase is a highly specific exoglycosidase that catalyzes the hydrolysis of α2-3 and, at a much lower rate, α2-6 linked N-acetyl-neuraminic acid residues from oligosaccharides. This enzyme has a 260-fold preference for α2-3 sialyl linkages over α2-6 sialyl linkages and shows only trace activity against α2-8 sialyl linkages (1).
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