Results 21 to 30 of about 26,234 (285)

Synthesis of Substituted 1,2,4-Triazole-3-Thione Nucleosides Using E. coli Purine Nucleoside Phosphorylase [PDF]

open access: yesBiomolecules
1,2,4-Triazole derivatives have a wide range of biological activities. The most well-known drug that contains 1,2,4-triazole as part of its structure is the nucleoside analogue ribavirin, an antiviral drug. Finding new nucleosides based on 1,2,4-triazole
Ilya V. Fateev   +22 more
doaj   +2 more sources

The Characterization of the Purine Nucleoside Phosphorylase from Agaricus bisporus and Its Potential Application in Reducing Purine Content in Beer [PDF]

open access: yesJournal of Fungi
Beer, the most popular alcoholic beverage, poses health risks for individuals with gout and hyperuricemia due to its high purine content. Herein, we identified a novel purine nucleoside phosphorylase (AbPNP) from the edible mushroom Agaricus bisporus and
Jun Liu, Jian Lu
doaj   +2 more sources

Inverse enzyme isotope effects in human purine nucleoside phosphorylase with heavy asparagine labels. [PDF]

open access: yesProc Natl Acad Sci U S A, 2018
Significance Enzymes achieve catalytic efficiency by optimizing contacts between reactants and catalytic site amino acids. The transition state forms rarely, with a lifetime of a few femtoseconds.
Harijan RK   +4 more
europepmc   +2 more sources

Purine nucleoside phosphorylase as a target for the treatment of interstitial cystitis/bladder pain syndrome with and without Hunner lesions [PDF]

open access: yesScientific Reports
Chronic visceral pain disorders, such as interstitial cystitis/bladder pain syndrome (IC/BPS), are difficult to treat, and therapies are limited in number and efficacy.
Lori A. Birder   +6 more
doaj   +2 more sources

The ligand binding mechanism to purine nucleoside phosphorylase elucidated via molecular dynamics and machine learning

open access: yesNature Communications, 2015
The study of biomolecular interactions between a drug and its biological target is of paramount importance for the design of novel bioactive compounds.
Sergio Decherchi   +2 more
exaly   +2 more sources

Radical Dehalogenation and Purine Nucleoside Phosphorylase E. coli: How Does an Admixture of 2′,3′-Anhydroinosine Hinder 2-fluoro-cordycepin Synthesis [PDF]

open access: yesBiomolecules, 2021
During the preparative synthesis of 2-fluorocordycepin from 2-fluoroadenosine and 3′-deoxyinosine catalyzed by E. coli purine nucleoside phosphorylase, a slowdown of the reaction and decrease of yield down to 5% were encountered.
Alexey L. Kayushin   +12 more
doaj   +2 more sources

Propolis Exerts an Anti-Inflammatory Effect on PMA-Differentiated THP-1 Cells via Inhibition of Purine Nucleoside Phosphorylase. [PDF]

open access: yesMetabolites, 2019
Previous research has shown that propolis has immunomodulatory activity. Propolis extracts from different geographic origins were assessed for their anti-inflammatory activities by investigating their ability to alter the production of tumour necrosis ...
Alqarni AM   +6 more
europepmc   +2 more sources

Structure of purine nucleoside phosphorylase (DeoD) from Bacillus anthracis [PDF]

open access: hybrid, 2005
Protein structures from the causative agent of anthrax (Bacillus anthracis) are being determined as part of a structural genomics programme. Amongst initial candidates for crystallographic analysis are enzymes involved in nucleotide biosynthesis, since ...
Blagova, E V   +6 more
core   +4 more sources

Crystallographic snapshots of ligand binding to hexameric purine nucleoside phosphorylase and kinetic studies give insight into the mechanism of catalysis. [PDF]

open access: yesSci Rep, 2018
Purine nucleoside phosphorylase (PNP) catalyses the cleavage of the glycosidic bond of purine nucleosides using phosphate instead of water as a second substrate.
Štefanić Z   +5 more
europepmc   +2 more sources

Immunodeficiency, motor delay, and hypouricemia caused by a novel mutation of purine nucleoside phosphorylase gene in an Indian infant [PDF]

open access: yesAnnals of Indian Academy of Neurology, 2019
We describe an 11-month-old boy who presented with recurrent respiratory infections from 6 months of age. His elder sister died at 10 months with severe septicemia and meningitis. The boy had a mild motor delay.
Nikit Shah   +5 more
doaj   +2 more sources

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