3-1,3-N-acetyl-D-glucosamine

Another structural variation is the replacement of a hydroxyl group m a carbohydrate by an ammo group to give an ammo sugar The most abundant ammo sugar is one of the oldest and most abundant organic compounds on earth N Acetyl d glucosamine is the... [Pg.1042]

Partially deacetylated chitin, a cellulose-like biopolymer consisting predominantly of N-acetyl-D-glucosamine chains, in the form of films or crosslinked hydrogels has been used for the delivery of drugs (28,29). The suitability of chitin as a vehicle for the sustained release of drugs was examined using indomethacin and papaverine hydrochloride as model drugs (30). In vitro studies showed that over 80% of the indomethacin was released within 7 hr, whereas papaverine hydrochloride dissolved almost immediately. [Pg.233]

Lysozyme j Hydrolyzes link between N-acetylmura-j mic acid and N-acetyl-D-glucosamine j found in certain bacterial cell walls Abundant in macrophages... [Pg.621]

Aufier dem Aminonucleosid II wurden Verbindungen mit analoger Struktur synthetisiert, die an Stelle der 3-Amino-D-ribose 3-Amino-D-arabinose (12) oder N-Acetyl-D-glucosamin (9) enthalten. [Pg.219]

Stanley, P. G. Liberation of N-Acetyl-D-glucosamine from Ovomucin by... [Pg.257]

N-acetyl-D-glucosamine hexuronie acid (probably D-gluc-uronic acid)... [Pg.181]

From the identification of these products it was possible to give a means of portraying the type of structure (LVIII) present in the carbohydrate molecule. In this, by glycosidic attachment, seven N-acetyl-D-glucosamine unitB and one D-galactose unit radiate from a central core of three D-mannose units. It is not yet clear by what linkages the d-mannose units are mutually attached, or to which D-mannose the d-galactose residue is linked. [Pg.210]

The acetylated amino sugars N-acetyl-D-glucosamine and N-acetyl-D-Galactosamine (4) are often encountered as components of glycoproteins. [Pg.38]

This enzyme [EC 3.2.1.17], also called muramidase, catalyzes the hydrolysis of the l,4-/3-linkages between N-acetyl-D-glucosamine and A-acetylmuramic acid in pep-tidoglycan heteropolymers of prokaryotic cell walls. Some chitinases [EC 3.2.1.14] also exhibit this activity. See Kinetic Isotope Effect... [Pg.435]

N-Acetylglucosamine 2-epimerase, N-ACYLGLUCOSAMINE 3-EPIMERASE N-ACETYLGLUCOSAMINE KINASE N-Acetyl-D-glucosamine 1-phosphate, PHOSPHOACETYLGLUCOSAMINE MUTASE... [Pg.718]

N-acetyl D-glucosamine A/-acetyl D-mannosamine N-acetyl D-galactosamine... [Pg.14]

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