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Oligosaccharides containing, structure

Baddiley and coworkers used V-deacetylation-deamination in structural studies on two oligosaccharides containing 2-amino-2-deoxy-D-galactose that had been obtained by dephosphorylation of the capsular substances from Pneumococcus types 10A (Ref. 177) and 29 (Ref. 13), respectively. The former (110) yielded 2-O-a-D-galac-... [Pg.237]

The main approaches used for identification of natural isomers of 5,7-diamino-3,5,7,9-tetradeoxynon-2-ulosonic acids and determination of structures of bacterial poly- and oligosaccharides-containing derivatives of these sugars were H and 13C NMR spectroscopy. This could be applied to both intact natural glycopolymers and carbohydrate portions obtained after delipidation of LPS as well as to oligosaccharide fragments and... [Pg.389]

In most structural studies of the polysaccharides, oligosaccharides containing the nonulosonic acids were prepared in order to have better-resolved NMR spectra and for investigation by MS. In some examples, a monosaccharide or a monosaccharide glycoside were also prepared by chemical degradations. [Pg.392]

Whilst there appears to be limited scope at present for the utilization of these observations in determinations of polysaccharide structures, they can be of value when the Morgan-Elson test is applied to oligosaccharides containing amino sugar residues, as the work on the oligosaccharides from human milk2 has shown. Obviously, no simple relation exists between a positive test and the presence of free 2-acetamido-2-deoxyhexose, but much information may be culled by a consideration of all the factors outlined above. [Pg.268]

The complex N-linked oligosaccharide contains the j8-Man-di-A-acetylchitobiose (Man-/3-l,4-Glc N Ac-/3-l,4-Glc N Ac-Asn) core structure and also consists of a variable number of outer chains containing sialic acid (sial), galactose (Gal) and fu-cose (fuc) residues linked to the core. Usually, 2a-mannose (Man) residues are at-... [Pg.126]

Compound 40 is a double-branched oligosaccharide containing a disubstituted Man-4, but lacking the lower branch up to and including Man-4, as compared to di- or tri-antennary structures it is an example... [Pg.298]

See other pages where Oligosaccharides containing, structure is mentioned: [Pg.340]    [Pg.340]    [Pg.1049]    [Pg.1049]    [Pg.287]    [Pg.33]    [Pg.521]    [Pg.180]    [Pg.103]    [Pg.238]    [Pg.308]    [Pg.148]    [Pg.332]    [Pg.58]    [Pg.208]    [Pg.10]    [Pg.314]    [Pg.148]    [Pg.7]    [Pg.83]    [Pg.388]    [Pg.1056]    [Pg.150]    [Pg.181]    [Pg.194]    [Pg.216]    [Pg.364]    [Pg.363]    [Pg.234]    [Pg.432]    [Pg.450]    [Pg.308]    [Pg.207]    [Pg.193]    [Pg.280]    [Pg.230]    [Pg.375]    [Pg.162]    [Pg.168]    [Pg.212]    [Pg.322]    [Pg.1219]   


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Containment structures

Structure oligosaccharide

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