Results 21 to 30 of about 22,404 (220)
Molecules, 2022 Three palladium(II) complexes with amino-amidato-phenolato-type tridentate ligands were synthesized and characterized by 1H NMR spectroscopy and X-ray crystallography.
Ryoji Mitsuhashi +3 more
doaj +1 more source
Expanding a fluorescent RNA alphabet: synthesis, photophysics and utility of isothiazole-derived purine nucleoside surrogates. [PDF]
, 2017 A series of emissive ribonucleoside purine mimics, all comprised of an isothiazolo[4,3-d]pyrimidine core, was prepared using a divergent pathway involving a key Thorpe-Ziegler cyclization.
Fin, Andrea +2 more
core +1 more source
2,6-diaminopurine promotes repair of DNA lesions under prebiotic conditions
Nature Communications, 2021 UV-induced photodamage that likely occurred during the prebiotic synthesis of DNA and RNA is still an untackled issue for their origin on early Earth. Here, the authors show that substitution of 2,6-diaminopurine for adenine enables repair of cyclobutane
Rafał Szabla +7 more
doaj +1 more source
Nucleotides: Structure and Properties [PDF]
, 2005 Nucleotides consist of a nitrogen-containing base, a five-carbon sugar, and one or more phosphate groups. Cells contain many types of nucleotides, which play a central role in a wide variety of cellular processes, including metabolic regulation and the ...
Bowater, RP
core +1 more source
Wavelength dependent excited state dynamics observed in canonical pyrimidine nucleosides
Journal of Photochemistry and Photobiology, 2023 Epidemiological evidence indicates that damage to DNA/RNA initialized by ultraviolet (UV) radiation is associated with skin cancer. Wavelength dependence of DNA photodamage was proposed as early as 1990s and demonstrated later on.
Peicong Wu +3 more
doaj +1 more source
Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]
, 2011 A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Engels, Joachim W. +2 more
core +2 more sources
Interaction of low-energy electrons with the purine bases, nucleosides, and nucleotides of DNA [PDF]
, 2006 The authors report results from computational studies of the interaction of low-energy electrons with the purine bases of DNA, adenine and guanine, as well as with the associated nucleosides, deoxyadenosine and deoxyguanosine, and the nucleotide ...
McKoy, Vincent, Winstead, Carl
core +1 more source
Ozonolysis of Pyrimidine Nucleosides [PDF]
Bulletin of the Chemical Society of Japan, 1990 Abstract Cytidine, uridine, and thymidine are transformed into the ring-contracted 1-substituted derivatives by ozone. A plausible mechanism is proposed.
Masaki Matsui +3 more
openaire +1 more source
Frontiers in Bioengineering and Biotechnology, 2020 Nucleoside-2′-deoxyribosyl-transferases (NDTs) catalyze a transglycosylation reaction consisting of the exchange of the 2′-deoxyribose moiety between a purine and/or pyrimidine nucleoside and a purine and/or pyrimidine base.
Javier Acosta +5 more
doaj +1 more source
Electron collisions with biomolecules [PDF]
, 2008 We report on results of recent studies of collisions of low-energy electrons with nucleobases and other DNA constituents. A particular focus of these studies has been the identification and characterization of resonances that play a role in electron ...
McKoy, Vincent, Winstead, Carl
core +1 more source