Nucleotide diphosphates

There is a second large gene duster, about 35kb, also involved in the synthesis of xanthan. The predse function is unknown but it is thought to encode for proteins involved in the synthesis of sugar nucleotide diphosphates. 

H2O) in CH2CI2 afforded the desired nucleotide diphosphates 2009 in nearly quantitative yield [178-180] (Scheme 12.51). 

Chiadmi, M. Morera, S. Lascu, I. Dumas, C. Le Bras, G. Veron, M. Janin, J. Crystal structure of the Awd nucleotide diphosphate kinase from Drosophila. Structure, 1, 283-293 (1993)... 

The formation of deoxyribose, die pentose moiety of deoxyribonucleic acid, can occur directly from ribose while the latter is in the form of a nucleotide diphosphate. Deoxyribose-5-phosphate can also be formed by condensation of acetaldehyde and glyceraldehyde-3-phosphate. 

The nucleotide diphosphates can be obtained by different approaches. Chemical synthesis provides an attractive route to these activated... 

In an attempt to generate hybrid macrocydic carriers for di- and triphosphate speties, various oligosapphyrins, e.g., 26 and 27, were prepared. Among the resulting speties, oligosapphyrin 27, which remains multiply protonated at neutral pH, was found to be an effective carrier for nucleotide diphosphates [83]. 

Fig. 3-4. Simplified representation of the formation of hemicellulose precursors from UDP-d-glucose or GDP-D-glucose. Note that NDP (nucleotide diphosphate) means either UDP or GDP.

Dousa TP, Chini EN, and Beers KW (1996) Adenine nucleotide diphosphates emerging second messengers acting via intracellular Ca + release. American Journal of Physiology 271, C1007-24. 

The chemical synthesis of a sugar nucleotide diphosphate makes use of an activated nucleotide monophosphate [23] and a glycosyl monophosphate. The most efficient nucleoside monophosphates are phosphorimidazolidates... 

E>ousa, T. P, Chini, H. N., and Beers, K. VV. (1996). Adenine nucleotide diphosphates Emerging second messengers acting via intracellular Ca release. Am. /. Pftvsie/. 271, C1007-C1024. 

NMP Nucleotide monophosphate NDP Nucleotide diphosphate NTP Nucleotide triphosphate... 

All living organisms get their chemical energy from ATP and a hydride a reduced form of nicotinamide adenosine nucleotide diphosphate, NADH + H+, or its phosphorylated analog, NADPH + H+(Fig. 1.5). 

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