Results 101 to 110 of about 37,185 (261)

Nucleosides isolated from Ophiocordyceps sinensis inhibit cigarette smoke extract-induced inflammation via the SIRT1–nuclear factor-κB/p65 pathway in RAW264.7 macrophages and in COPD mice

open access: yesInternational Journal of COPD, 2018
Xiao Sun,1 Zhonghua Dong,1 Nan Li,1 Xiuli Feng,1 Yan Liu,1 Ang Li,1 Xiaosong Zhu,1 Chunyan Li,1 Zhongxi Zhao1–3 1School of Pharmaceutical Sciences, Shandong University, Jinan, People’s Republic of China; 2Shandong Engineering and Technology ...
Sun X   +8 more
doaj  

Membrane‐Permeable Nucleoside T‐1106 Diphosphate and Triphosphate Analogues as Antiviral Pronucleotides

open access: yesChemistry – A European Journal, EarlyView.
Favipiravir (T‐705) and the non‐fluorinated counterpart (T‐1106) are antiviral agents that inhibit the RNA‐dependent RNA polymerase (RdRp) of various RNA viruses. The antiviral efficacy of nucleoside analogues is strongly dependent on their intracellular activation by cellular kinases to produce their corresponding triphosphate metabolites (T‐705‐RTP ...
Chris Meier   +7 more
wiley   +1 more source

Nucleoside Triphosphate-Nucleoside Diphosphate Transphosphorylase (Nucleoside Diphosphokinase)

open access: yesJournal of Biological Chemistry, 1973
Richard Palmieri   +5 more
openaire   +1 more source

Helical Folding of Abiotic Chiral Poly(phosphodiester)s

open access: yesChemistry – A European Journal, EarlyView.
Design and structural analysis of a new class of phosphodiester foldamers are presented. These oligomers that fold into single helical architecture showed length and temperature stability dependence comparable to DNA duplexes. ABSTRACT Functions of biomolecules are intimately linked to their structures which result from the folding of a linear sequence
Ranajit Barman   +3 more
wiley   +1 more source

Nucleoside Triphosphate-Nucleoside Diphosphate Transphosphorylase (Nucleoside Diphosphokinase)

open access: yesJournal of Biological Chemistry, 1964
Robert L. Ratliff   +3 more
openaire   +1 more source

Fully Reversible Regulation of 8‐17 DNAzyme Activity Using Nucleoside‐Based Diarylethenes

open access: yesChemistry – A European Journal, EarlyView.
The site‐specific incorporation of nucleosidic diarylethenes into the 8–17 deoxyribozyme (DNAzyme) identified position 2.1 as optimal. Compound dU‐PhtBu enabled efficient light‐dependent control of catalytic activity, while maintaining thermal stability and reversibility.
Jörn Bargstedt   +3 more
wiley   +1 more source

Synthesis of Oligonucleotide Conjugates Employing a Diselenide Linker

open access: yesChemistry – A European Journal, EarlyView.
ABSTRACT In this study, we report the synthesis of an alkylene linker containing a terminal 2‐cyanoethyl protected selenium functionality for coupling at the 5'‐end of an oligonucleotide by solid phase synthesis for the preparation of oligonucleotide conjugates.
Shivam Tikoo   +2 more
wiley   +1 more source

Fluorogenic Sydnones for Bioorthogonal Labeling of DNA

open access: yesChemistry – A European Journal, EarlyView.
Conjugates of sydnones with cyanine‐styryl dyes combine bioorthogonal reactivity with fluorogenicity. The reactivity with bicyclo[6.1.0]non‐4‐yne (BCN)‐modified DNA showed second‐order rate constants of up to k2 = 2,300 M−1s−1 and fluorescence turn‐on by one magnitude of order.
Kerstin Müller   +1 more
wiley   +1 more source

An Electrophilic Uridine Building Block for Post‐Synthetic RNA Modification as Exemplified for Spin Labeling

open access: yesChemistry – A European Journal, EarlyView.
An electrophilic 5‐isothiocyanatomethyl uridine building block enables modular post‐synthetic RNA labeling with primary amine‐containing probes. Positioning the functionality in the major groove minimizes structural perturbation and allows facile conjugation of sensitive tags such as TEMPO spin labels for paramagnetic relaxation enhancement studies ...
Lisa Ruetz   +4 more
wiley   +1 more source

THE ROLE OF NUCLEOTIDE SUBSTANSES AND NO-SYNTHASE IN THE IMMUNE PROTECTION OF THE ORGANISM

open access: yesРазработка и регистрация лекарственных средств, 2019
The present article describes the biochemical mechanisms and the possibility of nucleotides and nucleosides substances naturally produced (i.e. Saccharomyces cerevisiae and others) medicine application in field of correction of pathologically altered ...
V. S. Orlova   +3 more
doaj  

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