Results 11 to 20 of about 197,362 (384)

Strained Conformations of Nucleosides in Active Sites of Nucleoside Phosphorylases [PDF]

open access: yesBiomolecules, 2020
Nucleoside phosphorylases catalyze the reversible phosphorolysis of nucleosides to heterocyclic bases, giving α-d-ribose-1-phosphate or α-d-2-deoxyribose-1-phosphate. These enzymes are involved in salvage pathways of nucleoside biosynthesis. The level of
Irina A. Il’icheva   +2 more
doaj   +3 more sources

Diversification of 4′-Methylated Nucleosides by Nucleoside Phosphorylases [PDF]

open access: yesACS Catalysis, 2021
The growing demand for 4'-modified nucleoside analogs in medicinal and biological chemistry is contrasted by the challenging synthetic access to these molecules and the lack of efficient diversification strategies. Herein, we report the development of a biocatalytic diversification approach based on nucleoside phosphorylases, which allows the ...
Felix Kaspar   +11 more
openaire   +2 more sources

Nucleoside Sensing [PDF]

open access: yesSensors, 2006
A rigid molecular clip comprising bisphosphonate binding sites and aromaticsidewalls forming an electron-rich cavity is able to distinguish between nucleosides andnucleotides in aqueous solution. Neutral nucleosides as well as antibiotics derived thereofare drawn into the unpolar interior of the cleft and lead to substantial upfield-shifts in the 1HNMR
Fokkens, Michael   +2 more
openaire   +2 more sources

Carbocyclic nucleosides [PDF]

open access: yesMedicinal Research Reviews, 1986
n ...
Marquez, Victor E., Lim, Mu-Ill
openaire   +3 more sources

Ortho-(1-phenylvinyl)benzyl glycosides: Ether-type glycosyl donors for the efficient synthesis of both O-glycosides and nucleosides

open access: yesGreen Synthesis and Catalysis, 2020
Both O-glycosides and nucleosides are essential biomolecules with important roles in a variety of biological processes. Chemical synthesis of both O-glycosides and nucleosides is a scalable and reliable method to develop new therapeutic agents and ...
Penghua Li   +7 more
doaj   +1 more source

Efficient Biocatalytic Synthesis of Dihalogenated Purine Nucleoside Analogues Applying Thermodynamic Calculations [PDF]

open access: yes, 2020
The enzymatic synthesis of nucleoside analogues has been shown to be a sustainable and efficient alternative to chemical synthesis routes. In this study, dihalogenated nucleoside analogues were produced by thermostable nucleoside phosphorylases in ...
Giessmann, Robert T.   +9 more
core   +1 more source

Targeted metabolomics analysis of nucleosides and the identification of biomarkers for colorectal adenomas and colorectal cancer

open access: yesFrontiers in Molecular Biosciences, 2023
The morbidity and mortality of colorectal cancer (CRC) have been increasing in recent years, and early detection of CRC can improve the survival rate of patients. RNA methylation plays crucial roles in many biological processes and has been implicated in
Weifang Zheng   +9 more
doaj   +1 more source

Synthesis of Natural Product-Like Tricyclic Higher-Carbon Sugar Nucleosides

open access: yesPharmaceutical Fronts, 2021
Because of the structural novelty and interesting biological profiles, the synthesis of higher-carbon sugars has been highly pursued. In this work, we first synthesized a series of structurally novel bis-uracil containing tricyclic higher-carbon sugar ...
Xiao-Han Yuan   +4 more
doaj   +1 more source

Determination of total potentially available nucleosides in bovine milk [PDF]

open access: yes, 2010
Bovine colostrum and milk samples were collected from two herds over the course of the first month post-partum, pooled for each herd by stage of lactation and total potentially available nucleosides were determined.
Gill, Brendon D.   +2 more
core   +2 more sources

An Efficient and Facile Methodology for Bromination of Pyrimidine and Purine Nucleosides with Sodium Monobromoisocyanurate (SMBI)

open access: yesMolecules, 2013
An efficient and facile strategy has been developed for bromination of nucleosides using sodium monobromoisocyanurate (SMBI). Our methodology demonstrates bromination at the C-5 position of pyrimidine nucleosides and the C-8 position of purine ...
Roger Stromberg, Jyotirmoy Maity
doaj   +1 more source

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