6-Chloropurine riboside is used to study the kinetics and substrate specificity of adenosine deaminase. 6-Chloropurine riboside is benzoylated to facilitate synthesis of nucleoside derivatives such as 9-(2,3-Di-deoxy-2-fluoro-β-D-threo-pentofuranosyl)adenine. 6-Chloropurine riboside, especially after phosphorylation to NMP, NDP or NTP, is used as a purine substrate analogue in studies with enzymes such as Inosine monophosphate dehydrogenase (IMPDH); bacteriophage T4 RNA-ligase (EC 6.5.1.3) and pancreatic fibonuclease A.
The NTP binding site of bacteriophage T4 RNA-ligase (EC 6.5.1.3) was studied using several ATP analogs modified in the purine moiety of the nucleotide at positions 1, 2, 6 and 8: adenosine-N'-oxide 5'-triphosphate (I), 6-chloropurine riboside 5'-triphosphate (II), 6-mercaptopurine riboside
Molecular and cellular biochemistry, 204(1-2), 127-134 (2000-03-16)
Adenosine deaminase (ADA) was isolated from small intestine of mice and purified to utmost homogeneity. SDS-PAGE of purified ADA gave a molecular weight of 41 kDa. Western blot analyses gave a single reactive band at 41 kDa and the other
This work describes the application of thermophilic microorganisms for obtaining 6-halogenated purine nucleosides. Biosynthesis of 6-chloropurine-2'-deoxyriboside and 6-chloropurine riboside was achieved by Geobacillus stearothermophilus CECT 43 with a conversion of 90% and 68%, respectively. Furthermore, the selected microorganism was satisfactorily
A new method to introduce a benzyl group onto the 2'-OH of purine ribonucleoside is described. Thus, 6-chloropurine 3'-O-benzoylriboside and its 5'-O-trityl congener were condensed with benzyl alcohol using the Mitsunobu reaction to give the 2'-O-benzyl derivative. The yields were
On the basis of our previous study on antiviral agents against the severe acute respiratory syndrome (SARS) coronavirus, a series of nucleoside analogues whose 5'-hydroxyl groups are masked by various protective groups such as carboxylate, sulfonate, and ether were synthesized
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