Sulfones polysaccharide, degradation

The sulfone degradation has been applied to other polysaccharides, in particular to the product obtained from the Pneumococcus type 2 polysaccharide after methylation and uronic acid elimination (see Section IV,2, p. 218).127 Only about one third of the terminal D-glucose residues was eliminated, and an analysis of... 

Sulfite oxidase catalyzes one of the final stops in the oxidation of the sulfur amino acids. The catabolism of methionine can result in the appearance of its sulfur atom in cysteine, as shown in Chapter 8. Cysteine can be oxidized to cysteine sulfonate, as shciwn in the section on taurine in Chapter 2, and then degraded to pyruvate. Daily, an average of 25 mmol of sulfite is produced in the body. This amount is large compared with the dally intake of fo< sulfite, which is about 2.5 mmol- The point at which sulfite oxidase occurs in the cysteine catabolic pathway is shown in Figure 10,53, Sulfate (SO ") is required for the synthesis of su I fated polypeptides and polysaccharides. It is thought that sulfate is not required in the dict-... 

His investigations on the auto-oxidation of alcohols - have been extended by Wells to various a- and iS-n-aldopyranoses, methyl a- and /3-D-aldopyranosides, and polysaccharides. The author is indebted to Dr. C. F. Wells for making his results available for this article prior to their publication.During the auto-oxidation of alcohols in aqueous solutions photosensitized by sodium 9,10-dihydro-9,10-dioxo-2-anthracene-sulfonate, the energy of the photo-excited, quinonoid sensitizer is degraded by the following two processes. 

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