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Complex saccharides sugars

As a complement to the comprehensive Chapter on the biosynthesis of complex saccharides by Nikaido and Hassid in Vol. 26, where the products of biosynthesis were stressed, Kochetkov and Shibaev (Moscow) here emphasize the nucleotide sugar biosynthetic intermediates, themselves, in a detailed article on their chemistry and enzymology. [Pg.577]

Chapters 17 through 21 deal with carbohydrate-enzyme systems. Hehre presents some new ideas on the action of amylases. Kabat presents some new immunochemical studies on the carbohydrate moiety of certain water-soluble blood-group substances and their precursor antigens. Hassid reviews the role of sugar phosphates in the biosynthesis of complex saccharides. Pazur and co-workers present information obtained by isotopic techniques on the nature of enzyme-substrate complexes in the hydrolysis of polysaccharides. Gabriel presents a common mechanism for the production of 6-deoxyhexoses. An intermediate nucleoside-5 -(6-deoxyhexose-4-ulose pyrophosphate) is formed in each of the syntheses. [Pg.8]

The Role of Sugar Phosphate in the Biosynthesis of Complex Saccharides... [Pg.370]

Glycosyl—Enzyme Complex Intermediates in Biosynthesis of Complex Saccharides. The synthesis of nucleoside diphosphate sugars involves the transfer of a nucleotidyl group from a nucleoside triphosphate to a sugar 1-phosphate with the simultaneous release of pyrophosphate according to the following general reaction (11) ... [Pg.372]

Volume 52 of this series featured the comprehensive IUPAC-IUBMB document Nomenclature of Carbohydrates that meets a long-standing need for up-to-date standardized nomenclature for sugar derivatives and complex saccharides. Ongoing work of the international committee has... [Pg.372]

A similar example is the biosynthesis of UDP-2-acetamido-2-deoxy-D-glucose and CMP-N-acetylneuraminic acid in rat liver.Here again, both sugars are needed for syntliesis of complex saccharides, and each sugar nucleotide inhibits the first enzyme of the pathway unique to its synthesis, as shown by the dotted arrows in the following Scheme. [Pg.364]

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Sugars saccharides

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