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Glucosamine 1,6-diphosphate

A uridine pyrophosphate derivative of Ai -acetyl-n-glucosamine which contains an extra phosphate group has been isolated from a hot-water extract of hen oviducts. Uridine 5-phosphate and uridine 5-pyrophosphate have been recovered from acid hydrolyzates of this compound. A diphosphate ester of A-acetyl-n-glucosamine can also be obtained from acid hydrolyzates of this uridine compound. Because of the catalytic activity of phospho-A -acetyl-n-glucosamine mutase toward it, it is probably AT-ace-tyl-D-glucosamine 1,6-diphosphate. [Pg.312]

Figure 20-7. Summary of the interrelationships in metabolism of amino sugars. (At asterisk Analogous to UDPGIc.) Other purine or pyrimidine nucleotides may be similarly linked to sugars or amino sugars. Examples are thymidine diphosphate (TDP)-glucosamine and TDP-N-acetylglucosamine. Figure 20-7. Summary of the interrelationships in metabolism of amino sugars. (At asterisk Analogous to UDPGIc.) Other purine or pyrimidine nucleotides may be similarly linked to sugars or amino sugars. Examples are thymidine diphosphate (TDP)-glucosamine and TDP-N-acetylglucosamine.
D-glucosamine 6-phosphate to D-glucosamine 1-phosphate. a-D-Glucose 1,6-diphosphate is a cofactor, 264(e)... [Pg.247]

Fig. 4.3.2 Human sialic acid metabolism and genetic defects. -6P -6-Phosphate, -9P -9-phos-phate, CMP cytidine 5 -monophosphate, CTP cytidine 5 -triphosphate, UDP-GlcNAc uridine diphosphate-N-acetyl-D-glucosamine, ManNAc N-acetylmannosamine, NeuAc N-acetylneur-aminic acid, OGS oligosaccharides, SASD sialic acid storage disease... Fig. 4.3.2 Human sialic acid metabolism and genetic defects. -6P -6-Phosphate, -9P -9-phos-phate, CMP cytidine 5 -monophosphate, CTP cytidine 5 -triphosphate, UDP-GlcNAc uridine diphosphate-N-acetyl-D-glucosamine, ManNAc N-acetylmannosamine, NeuAc N-acetylneur-aminic acid, OGS oligosaccharides, SASD sialic acid storage disease...
Uridine-5 -diphosphate galactose (UDP-Gal) Uridine-5 -diphosphate glucosamine (UDP-GlcNAc) 1 Uridine-5 -diphosphate galactosamine (UDP-GalNAc) j 4.5-180 18 2, 3 2... [Pg.18]

A synthetic route was established for the preparation of an (),N-polyacyl glucosamine 3(l-6)disaccha-ride 1,4 -diphosphate which corresponds to the proposed structure of Salmonella-type lipid A. Many structural analogs were prepared in order to elucidate the true structural requirements for the biological activities of lipid A. [Pg.237]

Uridine diphosphate A -acetyl-n-glucosamine has been isolated and structurally characterized. The compound can be obtained from a nucleotide fraction of yeast by elution from a Dowex-1 anion-exchange column, and from guineapig livers by precipitation as the barium salt. ... [Pg.312]

Uridine diphosphate A -acetyl-n-glucosamine can undergo enzymic pyrophosphorolysis in the presence of pyrophosphate, to form uridine-5-... [Pg.312]

Radioactivity introduced into hyaluronate by uridine diphosphate V-acetyl-D-glucosamine labeled with acetyl-l-C in a homogenate of Rous chicken-wing sarcoma (free from nucleoside-triphosphoric acid) is... [Pg.315]

Fig. 3. Linear pathway for biosynthesis of trypanosomal GPI anchors. Dol-P-Man, dolichyl-phosphoryl-mannose EthN, phosphoethanolamine GlcN, glucosamine GlcNAc, A-acetylglucosamine Man, mannose, OAc , acetyl UDP, uridine 5 -diphosphate. (Redrawn from ref [22].)... Fig. 3. Linear pathway for biosynthesis of trypanosomal GPI anchors. Dol-P-Man, dolichyl-phosphoryl-mannose EthN, phosphoethanolamine GlcN, glucosamine GlcNAc, A-acetylglucosamine Man, mannose, OAc , acetyl UDP, uridine 5 -diphosphate. (Redrawn from ref [22].)...
See other pages where Glucosamine 1,6-diphosphate is mentioned: [Pg.310]    [Pg.202]    [Pg.245]    [Pg.247]    [Pg.307]    [Pg.434]    [Pg.465]    [Pg.167]    [Pg.335]    [Pg.167]    [Pg.215]    [Pg.569]    [Pg.219]    [Pg.237]    [Pg.90]    [Pg.91]    [Pg.436]    [Pg.100]    [Pg.538]    [Pg.146]    [Pg.139]    [Pg.259]    [Pg.19]    [Pg.41]    [Pg.2038]    [Pg.312]    [Pg.313]    [Pg.313]    [Pg.316]    [Pg.316]    [Pg.259]    [Pg.90]    [Pg.210]    [Pg.265]    [Pg.143]    [Pg.145]    [Pg.94]    [Pg.31]    [Pg.190]   
See also in sourсe #XX -- [ Pg.390 ]



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