Threonine and Serine Linkages in Mucopolysaccharides and Glycoproteins

Abstract

PC2716Isolation of Xialic Acid 9-Piiosphatase Vol.239, No. 8 migrated with authentic N-acetylneuraminic acid.Cc) UPon cleavage with the highly specific N-acylneuraminic acid aldolase (la), the '%-labeled product gave an equivalent quantity of 14Cpyruvate (13).The aldolase also yielded N-acetylmannosamine, as characterized by paper electrophoresis and chromatography(5).In summary, a specific N-acylneuraminic acid 9-phosphatase has been isolated from human erythrocytes.