Results 31 to 40 of about 191,107 (300)

Flipping Back of Extrahelical Guanine after Methyl Repair

Bibechana, 2022
Methylation at O6 atom of guanine is a type of DNA damage which can cause a cancer. This damage at O6 atom of guanine in a DNA can be transferred to SG atom of cysteine in O6-alkylguanine-DNA alkyltransferase (AGT).
Rajendra Prasad Koirala, Narayan Prasad Adhikari   +1 more
doaj   +3 more sources

Detection of Guanine and Adenine Using an Aminated Reduced Graphene Oxide Functional Membrane-Modified Glassy Carbon Electrode

Sensors, 2017
A new electrochemical sensor based on a Nafion, aminated reduced graphene oxide and chitosan functional membrane-modified glassy carbon electrode was proposed for the simultaneous detection of adenine and guanine. Fourier transform-infrared spectrometry (
Di Li, Xiao-Lu Yang, Bao-Lin Xiao, Fang-Yong Geng, Jun Hong, Nader Sheibani, Ali Akbar Moosavi-Movahedi   +6 more
doaj   +1 more source

Silica nanochannels boosting Ru(bpy)32+-mediated electrochemical sensor for the detection of guanine in beer and pharmaceutical samples

Frontiers in Nutrition, 2022
Vertically ordered mesoporous silica film (VMSF) with uniform mesoporous channels perpendicular to electrode substrate has a wide range of applications in direct electroanalysis of complex samples.
Luoxing Yang, Tongtong Zhang, Huaxu Zhou, Fei Yan, Yan Liu   +4 more
doaj   +1 more source

Substitutional Sodium Doping on Tungsten Ditelluride: A First-principles Study

Bibechana, 2022
Methylation at O6 atom of guanine is a type of DNA damage which can cause a cancer. This damage at O6 atom of guanine in a DNA can be transferred to SG atom of cysteine in O6-alkylguanine-DNA alkyltransferase (AGT).
Bibek Subedi, Narayan Adhikari
doaj   +3 more sources

Electrochemical antioxidant screening and evaluation based on guanine and chitosan immobilized MoS2 nanosheet modified glassy carbon electrode (guanine/CS/MoS2/GCE)

Open Chemistry, 2020
In this study, an electrochemical biosensor based on guanine and chitosan immobilized MoS2 nanosheet modified glassy carbon electrode (guanine/CS/MoS2/GCE) was developed and employed for antioxidant screening and antioxidant capacity evaluation.
Tang Ping, Tang Xiaosheng, Mei Shiyong, Xie Yixi, Liu Liangliang, Ren Licheng   +5 more
doaj   +1 more source

Crystal structure of the nucleoside 2′-deoxyguanosine dimethyl sulfoxide disolvate

Acta Crystallographica Section E: Crystallographic Communications, 2023
The title compound, C10H13N5O4·2C2H6OS, which is of interest with respect to its biological activity, at 183 K has orthorhombic (P212121) crystal symmetry. The structure displays a network of intermolecular N—H...N, N—H...O and O—H...O hydrogen bonds. 2′-
Bernhard Spingler
doaj   +1 more source

Guanosine nucleotides regulate B2 kinin receptor affinity of agonists but not of antagonists: Discussion of a model proposing receptor precoupling to G protein [PDF]

, 2000
The effect of nucleotides on binding of the B2 kinin (BK) receptor agonist {[}H-3]BK and the antagonist {[}H-3]NPC17731 to particulate fractions of human foreskin fibroblasts was studied.
Er Faussner, Faussner, Alexander, Adelbert A. Roscher, Roscher, Adelbert A.   +3 more
core   +1 more source

Electrochemical and theoretical evaluation of the interaction between dna and amodiaquine: evidence of the guanine adduct formation

Química Nova, 2010
The electrochemical behavior of the interaction of amodiaquine with DNA on a carbon paste electrode was studied using voltametric techniques. In an acid medium, an electroactive adduct is formed when amodiaquine interacts with DNA.
Maria Lara P. M. Arguelho, José do Patrocínio H. Alves, Nelson R. Stradiotto, Valdemar Lacerda Júnior, José Maria Pires, Adilson Beatriz   +5 more
doaj   +1 more source

A new possible way for cancer cure – DNA four strand [PDF]

World Cancer Research Journal, 2019
DNA is the active ingredient of all the biological operations of the cell because it stores genetic information in the configuration of genes. It is a very well recognized fact that DNA has a double-helical structure; recently, it was reported to have ...
P. Amit, K. Prerna, S. Anita, S. Kumar
doaj   +1 more source

Direct determination of guanine in Aciclovir Dispersible Tablets solution by acylpyrazolone modified glassy carbon electrode

Reviews in Analytical Chemistry, 2011
In this article, the investigation of electrochemical determination of guanine(GU) by 1-phenyl-3-methyl-4-(2-furoyl)-5-pyrazolone (HPMαFP) modified glassy carbon electrode (HPMαFP/GCE) in Aciclovir Dispersible Tablets solution was reported.
Li Xueli, Li Jinzhou
doaj   +1 more source