Results 21 to 30 of about 17,987 (161)

Purine nucleoside phosphorylase controls nicotinamide riboside metabolism in mammalian cells [PDF]

open access: yesJ Biol Chem, 2022
A. Kropotov   +13 more
semanticscholar   +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

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.
R. Harijan   +4 more
semanticscholar   +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 ...
Abdulmalik M. Alqarni   +6 more
semanticscholar   +2 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.
Z. Štefanić   +5 more
semanticscholar   +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

Purine Nucleoside Phosphorylase (PNP) as a Biomarker and Therapeutic Target in Muscle-Invasive Bladder Cancer [PDF]

open access: yesClinical Medicine Insights: Oncology
Background: This study investigates the potential of purine nucleoside phosphorylase (PNP) as a biomarker and therapeutic target in muscle-invasive bladder cancer (MIBC).
Yanfei Chen   +5 more
doaj   +2 more sources

Investigating the Vital Role of the Identified Abietic Acid from Helianthus annuus L. Calathide Extract against Hyperuricemia via Human Embryonic Kidney 293T Cell Model

open access: yesMolecules, 2023
To explore the anti-hyperuricemia components in sunflower (Helianthus annuus L.) calathide extract (SCE), we identified abietic acid (AA) via liquid chromatography–mass spectrometry and found an excellent inhibitor of xanthine oxidase (IC50 = 10.60 µM ...
Huining Dai   +5 more
doaj   +1 more source

Purine nucleoside phosphorylase [PDF]

open access: yesBiomeditsinskaya Khimiya, 2013
Purine nucleoside phosphorylase (PNP) is one of the most important enzymes of the purine metabolism, wich promotes the recycling of purine bases. Nowadays is the actual to search for effective inhibitors of this enzyme which is necessary for creation T-cell immunodeficient status of the organism in the organs and tissues transplantation, and ...
L G, Pogosian, Zh I, Akopian
openaire   +2 more sources

Genetic resistance to purine nucleoside phosphorylase inhibition in Plasmodium falciparum [PDF]

open access: yesProc Natl Acad Sci U S A, 2018
R. G. Ducati   +6 more
semanticscholar   +2 more sources

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