| uridine diphosphate n-acetylmuramic acid | A nucleoside diphosphate sugar which is formed from udp-n-acetylglucosamine and phosphoenolpyruvate. It serves as the building block upon which peptidoglycan is formed. (12 Dec 1998) |
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| uridine diphosphate xylose | <chemical> The decarboxylation product of udpglucuronic acid, which is used for formation of the xylosides of seryl hydroxyl groups in mucoprotein synthesis. Also forms plant xylans. Chemical name: Uridine 5'-(trihydrogen diphosphate), P'-alpha-D-xylopyranosyl ester (12 Dec 1998) |
| 5-phosphoribose 1-diphosphate | 5-Phosphoribosyl 1-diphosphate;d-Ribose carrying a phosphate group on ribose carbon-5 and a pyrophosphate group on ribose carbon-1; an intermediate in the formation of the pyrimidine and purine nucleotides as well as NAD+. Synonym: 5-phosphoribose 1-diphosphate. Acronym: PRPP (05 Mar 2000) |
| fructose-1,6-diphosphate reductase | <enzyme> From bovine lens; reduces fructose-1,6-diphosphate to sorbitol-1,6-diphosphate in presence of NADH; 3 isoenzymes which copurify with lactate dehydrogenase isoenzymes Registry number: EC 1.1.1.- Synonym: fdp reductase (26 Jun 1999) |
| fructose-diphosphate aldolase | <enzyme> An enzyme of the lyase class that catalyses the cleavage of fructose 1,6-biphosphate to form dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. The enzyme also acts on (3s,4r)-ketose 1-phosphates. The yeast and bacterial enzymes are zinc proteins. (enzyme nomenclature, 1992) e.c. 4.1.2.13. Chemical name: D-Fructose-1,6-biphosphate D-glyceraldehyde-3-phosphate-lyase Registry number: EC 4.1.2.13 (12 Dec 1998) |