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A-acetyl galactosamine

The ABO blood group substances in the red cell membrane are complex glycosphingohpids the immunodominant sugar of A substance is A -acetyl-galactosamine, whereas that of the B substance is galactose. [Pg.624]

This enzyme [EC 2.8.2.5] catalyzes the reaction of chon-droitin with 3 -phosphoadenylylsulfate to produce adenosine 3, 5 -bisphosphate and chondroitin 4 -suffate. Specifically, the sulfation is at the 4-position of A-acetyl-galactosamine residues of chondroitin. This enzyme is distinct from that of chondroitin 6-sulfotransferase [EC 2.8.2.17]. [Pg.148]

A-acetyl galactosamine (1 — 4) glucuronic/id-uronic acid (1—with 1 sulfo group... [Pg.285]

Fig. 25. The structure of the disaccharide tumor marker D-galactose-p[l,3]-A -acetyl galactosamine. Fig. 25. The structure of the disaccharide tumor marker D-galactose-p[l,3]-A -acetyl galactosamine.
Iduronate A/-Acetyl-galactosamine Iduronate /V-Acetyl-glucosamine... [Pg.93]

A brief communication appeared employing brain microsomes and an incubation mixture containing a mixture of UDP A -acety glucosamine- C and UDP A -acetyl galactosamine- C as well as ceramide lactoside (Honda... [Pg.615]

I his preparation was also reported to catalyze the removal of the terminal A -acetyl galactosamine of globoside, with negligible activity toward I ay-Sachs ganglioside in a 20-hour incubation. [Pg.616]

The activity of this enzyme was found to be at equivalent levels in both normal and Tay-Sachs tissues. Aberrant hexosaminidase activities have been reported in Tay-Sachs tissues. Elevated levels of activity toward synthetic nitrophenyl hexosaminosides as substrates has been reported in Tay-Sachs cerebral tissues (Okada and O Brien, 1969). Disc gel electrophoresis of normal tissues reveals the presence of two hexosaminidase activities, while in Tay-Sachs tissues only one is found (Okada and O Brien, 1969). A Tay-Sachs ganglioside specifically labeled in the N.ANA and A -acetyl galactasamine residues has been prepared by the in vivo administration of A -acetyl galactosamine- H into young rats. Employing this material as substrate, no release of hexosamine was detected w ith Tay-Sachs tissue, while detectable amounts were found with... [Pg.618]

Gangliosides Tay-Sachs disease Terminal A/-acetyl galactosamine cleavage enzyme Accumulation of an abnormal ganglioside in tissue especially brain impairment of mental and somatic function and vision eventually demyelination... [Pg.376]

See other pages where A-acetyl galactosamine is mentioned: [Pg.143]    [Pg.497]    [Pg.226]    [Pg.11]    [Pg.3008]    [Pg.1315]    [Pg.1783]    [Pg.2046]    [Pg.93]    [Pg.93]    [Pg.93]    [Pg.210]    [Pg.428]    [Pg.428]    [Pg.615]    [Pg.29]    [Pg.913]    [Pg.6]    [Pg.335]    [Pg.232]    [Pg.352]    [Pg.30]    [Pg.92]    [Pg.31]    [Pg.204]    [Pg.375]    [Pg.619]    [Pg.411]   
See also in sourсe #XX -- [ Pg.138 ]



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A -Acetyl-D-galactosamine

A -Acetyl-o-galactosamine

Acetyl galactosamine

Galactosamine

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