Results 21 to 30 of about 4,285 (173)

Synthesis of Disaccharide Nucleosides Utilizing the Temporary Protection of the 2′,3′-cis-Diol of Ribonucleosides by a Boronic Ester

open access: yesMolecules, 2017
Disaccharide nucleosides are an important class of natural compounds that have a variety of biological activities. In this study, we report on the synthesis of disaccharide nucleosides utilizing the temporary protection of the 2′,3′-cis-diol of ...
Hidehisa Someya, Taiki Itoh, Shin Aoki
doaj   +1 more source

Permeability of Coxiella burnetii to ribonucleosides [PDF]

open access: yesMicrobiology, 2002
Knowledge about transport in Coxiella burnetii, an obligate phagolysosomal parasite, is incomplete. The authors investigated the capability of isolated, intact, host-free Coxiella to transport ribonucleosides while incubated at a pH value typical of lysosomes.
Jeffrey D, Miller, Herbert A, Thompson
openaire   +2 more sources

The taste of ribonucleosides: Novel macronutrients essential for larval growth are sensed by Drosophila gustatory receptor proteins.

open access: yesPLoS Biology, 2018
Animals employ various types of taste receptors to identify and discriminate between different nutritious food chemicals. These macronutrients are thought to fall into 3 major groups: carbohydrates/sugars, proteins/amino acids, and fats.
Dushyant Mishra   +4 more
doaj   +1 more source

Characterizing Benzo[a]pyrene Adducts in Transfer RNAs Using Liquid Chromatography Coupled with Tandem Mass Spectrometry (LC-MS/MS)

open access: yesBiomedicines, 2023
The activated forms of the environmental pollutant benzo[a]pyrene (B[a]P), such as benzo[a]pyrene diol epoxide (BPDE), are known to cause damage to genomic DNA and proteins. However, the impact of BPDE on ribonucleic acid (RNA) remains unclear.
Cassandra Herbert   +4 more
doaj   +1 more source

Biomimetic Ketone Reduction by Disulfide Radical Anion

open access: yesMolecules, 2021
The conversion of ribonucleosides to 2′-deoxyribonucleosides is catalyzed by ribonucleoside reductase enzymes in nature. One of the key steps in this complex radical mechanism is the reduction of the 3′-ketodeoxynucleotide by a pair of cysteine residues,
Sebastian Barata-Vallejo   +5 more
doaj   +1 more source

Identification of N6,N6-Dimethyladenosine in Transfer RNA from Mycobacterium bovis Bacille Calmette-Guérin

open access: yesMolecules, 2011
There are more than 100 different ribonucleoside structures incorporated as post-transcriptional modifications, mainly in tRNA and rRNA of both prokaryotes and eukaryotes, and emerging evidence suggests that these modifications function as a system in ...
Peter C. Dedon   +8 more
doaj   +1 more source

Ribonucleosides, Aminoacyl- and Peptidyl-RNA: Synthesis, Thermodynamics, and Structure

open access: yesCHIMIA, 1999
Ribonucleosides, RNA and peptides are prepared to study non-covalent interactions of RNA, aminoacyl- and peptidyl-RNA. Techniques used include chemical synthesis in solution and on solid supports, UV- and NM-detected thermal denaturation, X-ray ...
Ewa Biala   +3 more
doaj   +1 more source

Evaluation of the level of 5'-nucleotidase and some biochemical parameters in the sera of beta-thalassemia patients

open access: yesTikrit Journal of Pure Science, 2023
One of the hydrolytic enzymes that catalyzes the hydrolysis of 5' -nucleotides into ribonucleosides and phosphate is the 5'nucleotidase, which is found in several organs.
Sameer M. Al-Gorany   +1 more
doaj   +1 more source

Synthesis of New 1,2,3-Triazol-4-yl-quinazoline Nucleoside and Acyclonucleoside Analogues

open access: yesMolecules, 2014
In this study, we describe the synthesis of 1,4-disustituted-1,2,3-triazolo-quinazoline ribonucleosides or acyclonucleosides by means of 1,3-dipolar cycloaddition between various O or N-alkylated propargyl-quinazoline and 1'-azido-2',3',5'-tri-O ...
Abdelaaziz Ouahrouch   +4 more
doaj   +1 more source

Synthesis and Antiviral Evaluation of 5-(4-Aryl-1,3-butadiyn-1-yl)-uridines and Their Phosphoramidate Pronucleotides

open access: yesMolecules
The emergence of RNA viruses driven by global population growth and international trade highlights the urgent need for effective antiviral agents that can inhibit viral replication.
Evan Saillard   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy