Results 1 to 10 of about 22,086 (209)

Sensitivity of mitochondrial transcription and resistance of RNA polymerase II dependent nuclear transcription to antiviral ribonucleosides.

open access: goldPLoS Pathogens, 2012
Ribonucleoside analogues have potential utility as anti-viral, -parasitic, -bacterial and -cancer agents. However, their clinical applications have been limited by off target effects.
Jamie J Arnold   +18 more
doaj   +2 more sources

Effects of Rosemary Extract on C2C12 Myoblast Differentiation and 5-Aminoimidazole-4-carboxamide Ribonucleoside (AICAR)-Induced Muscle Cell Atrophy [PDF]

open access: goldApplied Sciences, 2023
Sarcopenia is an aging-related disease that involves the gradual loss of muscle mass and function. However, no suitable therapeutic drugs are currently available. Accordingly, the purpose of the present study was to evaluate the effectiveness of rosemary
Jun Ho Lee   +6 more
doaj   +2 more sources

The Consequence of the Presence of Ribonucleotide for ds-DNA’s Electronic Properties: Preliminary Theoretical Studies [PDF]

open access: yesCells
The genome is continuously exposed to different harmful factors whose activity causes different types of lesions. On the other hand, during the DNA replication process, a ribonucleoside (rN) can be inserted more frequently than the occurrence of DNA ...
Boleslaw T. Karwowski
doaj   +2 more sources

Mechanochemical Reactivity of Ribonucleosides Mediated by Inorganic Species: Implications for Extraterrestrial Organic Matter Interpretation [PDF]

open access: goldApplied Sciences
Metal species and carbonate are often found as minerals in extraterrestrial rocky bodies. Based on this, the mechanochemical-induced degradation of canonical purine and pyrimidine ribonucleosides into their corresponding nucleobases mediated by some of ...
Gustavo P. Maia   +7 more
doaj   +2 more sources

Pyrimidine Biosynthesis and Ribonucleoside Metabolism in Species of Pseudomonas

open access: yesFermentation, 2023
Pyrimidine biosynthesis and ribonucleoside metabolism in species of Pseudomonas was the focus of this review, in relation to their current taxonomic assignments in different homology groups.
Thomas P. West
doaj   +1 more source

Ribonucleoside Hydrolases–Structure, Functions, Physiological Role and Practical Uses

open access: yesBiomolecules, 2023
Ribonucleoside hydrolases are enzymes that catalyze the cleavage of ribonucleosides to nitrogenous bases and ribose. These enzymes are found in many organisms: bacteria, archaea, protozoa, metazoans, yeasts, fungi and plants.
Leonid A. Shaposhnikov   +3 more
doaj   +1 more source

Enhanced differentiation of isomeric RNA modifications by reducing the size of ions in ion mobility mass spectrometric measurements

open access: yesJournal of Analytical Science and Technology, 2020
With the ability to differentiate different molecular sizes, ion mobility spectrometry (IMS) has great potentials in the analysis of isomeric compounds. However, due to the lack of sensitivity and resolution, IMS has not been commonly used.
Hongzhou Wang   +2 more
doaj   +1 more source

Remdesivir increases mtDNA copy number causing mild alterations to oxidative phosphorylation

open access: yesScientific Reports, 2023
SARS-CoV-2 causes the severe respiratory disease COVID-19. Remdesivir (RDV) was the first fast-tracked FDA approved treatment drug for COVID-19. RDV acts as an antiviral ribonucleoside (adenosine) analogue that becomes active once it accumulates ...
Nicole DeFoor   +9 more
doaj   +1 more source

RRM2 expression in different molecular subtypes of breast cancer and its prognostic significance

open access: yesDiagnostic Pathology, 2022
Background Breast cancer is one of the most common types of cancer. Ribonucleotide reductase (RNR) is a heterodimeric tetramer consisting of two Ribonucleoside-diphosphate reductase large subunits (RRM1) and two Ribonucleoside-diphosphate reductase small
Manar Ahmed Abdel-Rahman   +2 more
doaj   +1 more source

Complex coordinated extracellular metabolism: Acid phosphatases activate diluted human leukocyte proteins to generate energy flow as NADPH from purine nucleotide ribose

open access: yesRedox Biology, 2016
Complex metabolism is thought to occur exclusively in the crowded intracellular environment. Here we report that diluted enzymes from lysed human leukocytes produce extracellular energy.
John B. Hibbs Jr.   +2 more
doaj   +1 more source

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