A-D-Galactosamine-1 -phosphate

Fig. 14. Salvage pathways of nucleotide sugars. L-fucose (11), (3-L-fucose-l-phosphate (12), GDP-p-L-fucose (13), A fucokinase (EC 2.7.1.52), B GDP-Fuc pyrophosphorylase (EC 2.7.7.30). D-galactose (14), a-D-galactose-l-phosphate (15), UDP-a-D-galactose (16), C galactokinase (EC 2.7.1.6), D UDP-Gal pyrophosphorylase. IV-acetyl-D-galactosamine (17), Al-acetyl-a-D-galactosamine-l-phosphate (18), UDP-lV-acetyl-a-D-galactosamine (19), E IV-acetyl-galactosamine kinase (EC 2.7.1. ), F UDP-GalNAc pyrophosphorylase (EC 2.7.7. )...

Recently, Martin et al. described the synthesis of a- and p-D-glucosamine and galactosamine 1-phosphates using the more reactive trifluoromethyl oxazolines and dibenzyl phosphate [137],... 

A quantitative determination with carob in anti-Pn XXVIII (homologous antibody N, 735 pg/ml) gave 40 pg. In an equine anti-XXIX, albizzia, carob, ghatti, okra showed + + +,-f--l-,+ + +, + reactions, respectively. Pn S XXIX contains D-galactofuranose, D-galactopyranose, N-acetyl-D-galactosamine, ribitol and phosphate (2 1 1 1 1) linked as shown in (24). The structure of S XXVIII is not known. 

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