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Thymidine phosphorylase. Substrate specificity for 5-substituted 2'-deoxyuridines.
A continuous spectrophotometric assay for thymidine phosphorylase has been developed and used to analyze the substrate properties of a number of 5-substituted 2'-deoxyuridines. A QSAR was found whichExpand
Mechanism of selective inhibition of human cytomegalovirus replication by 1-beta-D-arabinofuranosyl-5-fluorouracil
TLDR
Results suggest that ara-FU acts as a bifunctional inhibitor of HCMV replication, and inhibition of viral DNA polymerase by 1-beta-D-arabinofuranosyl-5-fluorouracil-5'-triphosphate becomes more efficient. Expand
Synthetic Nucleosides and Nucleotides. XIX. Synthesis of 3'-Deoxycytidine 5'-Triphosphate and Related 3'-Deoxy-ribonucleotides from Cordycepin'
The pyrimidine 3'-deoxyriboside 5'-triphosphates, pyrimidine counterparts of cordycepin 5'-triphosphate, (1) were conveniently synthesized from cordycepin as potential deoxyribonucleic acidExpand
Inhibitory effects of 9-beta-D-xylofuranosyladenine 5'-triphosphate on DNA-dependent RNA polymerase I and II from cherry salmon (Oncorhynchus masou).
TLDR
The mode of xylo-ATP was competitive with respect to the incorporation of AMP into RNA and non-competitive to UTP and CTP. Expand
Molecular Mechanism of 5-Fluoro-2′-deoxyuridine-induced dNTP Imbalance Cell Death: Purification of an Endonuclease Involved in DNA Double Strand Breaks During dNTP Imbalance Death
Abstract We have detected, isolated and purified an endonuclease from 5-fluoro-2′-deoxyuridine-treated FM3A cells. The molecular mass of the endonuclease was approximately 40 kDa as judged by sodiumExpand
In Vitro Antiherpesviral Activity of 5-Alkyl Derivatives of 1-β-d-Arabinofuranosyluracil
TLDR
5-Ethyl-araU was as active as IUdR and more active than 9-β-d-arabinofuranosyladenine against herpes simplex virus (HSV) type 1 and did not inhibit cell growth at a concentration as high as 1,000 μg/ml. Expand
Synthetic Nucleosides and Nucleotides. XX1. Synthesis of Various 1-β-D-Xylofuranosyl-5-Alkyluracils and Related Nucleosides
Abstract Treatment of D-xylose (1) with 0.5% methanolic hydrogen chloride under controlled conditions followed by benzoylation and acetolysis afforded crystalline 1-O-acetyl-2, 3,Expand
Inhibition of mouse myeloma DNA polymerase alpha by 5-triphosphates of 1-beta-D-arabinofuranosylthymine and 1-beta-D-arabinofuranosylcytosine.
TLDR
AraTTP was tested for the inhibition of DNA synthesis in vitro using highly purified mouse myeloma DNA polymerase alpha in comparison with 1-beta-D-arabinofuranosylcytosine 5'-triphosphate (araCTP), and was found to inhibit competitively and non-competitively the incorporation of [3H]dTTP into DNA. Expand
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