O-galactosyl

Of all the compounds described above only the tetrakis-O-galactosyl derivative 32a was used in complexation studies68 with D-glucosamine hydrochloride and tetrabutylammonium dihydrogen phosphate. It forms 1 1 and 1 2 (host-guest) complexes with D-glucosamine and 1 1 complexes with the dihydrogen phosphate anion (Ka = 31 4M , DMSO-d6). 

The change in rotation of aqueous solutions of A-p-tolyl-o-galactosyl-... 

Collagen contains carbohydrate, predominantly in the form of glycosylated hydroxylysine residues, as O-galactosyl- -glucosyl side chains. The intermolecular crosslinks in collagen occur when the enzymatic oxidation of lysine residues by lysine oxidase spontaneously crosslink via aldimine and aldol bonds (10). 

Figure 5 Other types of O-linked glycosylation in eukaryotes, (a) O-Mannosylation (b) O-fucosylation (c) O-glucosylation (d) O-galactosylation.

DS and CS chains connect to the proteoglycan protein cores by a tetrasac-charide (o-glucuronosyl- (3-1,3-D-galactosyl- (3-1,3-o-galactosyl- (3-1,4-o-xylose). The single GAG chain of decorin is attached, via an O-glycoside link from this xylose, to residue 4 (serine) of the mature protein core (12). 

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