Results 11 to 20 of about 276,635 (308)

Relevance of πσ* states in the photoinduced processes of adenine, adenine dimer, and adenine–water complexes

The Journal of Chemical Physics, 2005
Ab initio calculations and time-resolved photoionization spectroscopy were carried out to characterize the role of the lowest two πσ* excited states for the photoinduced processes in the adenine monomer, adenine dimer, and adenine–water clusters. The calculations show—with respect to the monomer—a stabilization of 0.11–0.14 eV for the πσ* states in ...
Ritze, HH, Lippert, H, Samoylova, E, Smith, VR, Hertel, IV, Radloff, W, Schultz, Thomas   +6 more
openaire   +4 more sources

Structures and Vibrational Spectra of Adenine and Protonated Adenine [PDF]

Acta Physico-Chimica Sinica, 2009
National Natural Science Foundation of China [20573087]; National Key Basic Research Program of China [2007CB815303, 2009CB930703]; Program for New Century Excellent Talent (NCET) in Universities of Fujian Province ...
Liang, Xiao-Jing, Cui, Li, Wu, De-Yin, Tian, Zhong-Qun   +3 more
openaire   +2 more sources

Raman Analysis of RNA Nucleotide Strands From SARS-CoV-2 Variants and Subvariants: A Step Forward in the Definition of "Raman Genome". [PDF]

Adv Sci (Weinh)
Main Raman signals in RNA, related to helical backbone, ribofuranose ring, and nitrogenous bases, are affected by secondary structures that cause hyperchromic effects and significantly alter the Raman intensity. ABSTRACT Raman spectra of RNA nucleotide strands extracted from 20 SARS‐CoV‐2 strains, including the original Japanese isolate, Alpha, Beta ...
Pezzotti G, Yasukochi Y, Angiola G, Ueno T, Ikegami S, Okawa R, Adachi T, Zhu W, Mazda O, Grillo A, Higasa K, Okuma K.   +11 more
europepmc   +2 more sources

Trypanosoma brucei adenine-phosphoribosyltransferases mediate adenine salvage and aminopurinol susceptibility but not adenine toxicity [PDF]

International Journal for Parasitology: Drugs and Drug Resistance, 2014
African trypanosomes, like all obligate parasitic protozoa, cannot synthesize purines de novo and import purines from their hosts to build nucleic acids. The purine salvage pathways of Trypanosoma brucei being redundant, none of the involved enzymes is likely to be essential.
Lüscher, Alexandra, Lamprea-Burgunder, Estelle, Graf, Fabrice E., De Koning, Harry, Mäser, Pascal   +4 more
openaire   +4 more sources

Preorganized Internal Electric Field Promotes a Double-displacement Mechanism for the Adenine Excision Reaction by Adenine DNA Glycosylase [PDF]

, 2023
Adenine DNA glycosylase (MutY) is a monofunctional glycosylase, removing adenines (A) misinserted opposite 8-oxo-7,8-dihydroguanine (OG), a common product of oxidative damage to DNA.
Wenwen, Diao, Zhanfeng, Wang, Fangfu , Ye, James D., Farrell, Binju, Wang   +4 more
core   +2 more sources

Adenine Nucleotide and Nicotinamide Adenine Dinucleotide Measurements in Plants [PDF]

Current Protocols in Plant Biology, 2020
AbstractAs the principal co‐factors of many metabolic pathways, the measurement of both adenine nucleotides and nicotinamide adenine dinucleotide provides important information about cellular energy metabolism. However, given their rapid and reversible conversion as well as their relatively low concentration ranges, it is difficult to measure these ...
Zhang, Youjun, Krahnert, Ina, Bolze, Antje, Gibon, Yves, Fernie, Alisdair   +4 more
openaire   +4 more sources

Nanoporous Cu(II)-Adenine-Based Metal–Organic Frameworks for Selective Adsorption of C₂H₂ from C₂H₄ and CO₂

, 2023
In some important chemical processes, selective removal of C2H2 from other gases is necessary. The method of selecting porous materials for separation is energy-efficient and economical in comparison with some traditional methods, such as solvent ...
Lin-Hua Xie (2322403), Guang-Yun Wang (17427944), Qiao Ye (6325778), Yuan Luo (10799), Lu Wang (45927), Jie Lv (235936)   +5 more
core   +2 more sources

Tautomerisation Mechanisms in the Adenine-Thymine Nucleobase Pair During DNA Strand Separation [PDF]

, 2022
The adenine-thymine tautomer (A*-T*) has previously been discounted as a spontaneous mutagenesis mechanism due to the energetic instability of the tautomeric configuration.
Max, Winokan, Jim, Al-Khalili, Louie, Slocombe, Marco, Sacchi, Benjamin, King, Paul, Stevenson   +5 more
core   +2 more sources

Adenine-Induced Nephropathy Reduces Atherosclerosis in ApoE Knockout Mice [PDF]

, 2022
Background: Cardiovascular events are the main cause of death in patients with chronic kidney disease. We hypothesize that the protective effects of renal cholesterol and vitamin D(3) metabolism are lost under this condition.
Verouti, Sofia N., Sofia N. Verouti, Verouti, Sofia N, Escher, Geneviève, Ackermann, Daniel, Laeticia Scherler, Bruno Vogt, Scherler, Laeticia, Daniel Ackermann, Geneviève Escher, Vogt, Bruno   +10 more
core   +2 more sources

Synthesis of purines and adenines containing the hexafluoroisopropyl group

Beilstein Journal of Organic Chemistry, 2020
Several new derivatives of adenine, purine, and theophylline containing the (CF3)2CH group connected to a nitrogen atom of the imidazole ring were prepared by the reaction of 2,2,4,4-tetrakis(trifluoromethyl)-1,3-dithietane (1) with the corresponding ...
Viacheslav Petrov, Rebecca J. Dooley, Alexander A. Marchione, Elizabeth L. Diaz, Brittany S. Clem, William Marshall   +5 more
doaj   +1 more source