Results 31 to 40 of about 159,037 (219)

Reductionsproducte aus Guanin [PDF]

Berichte der deutschen chemischen Gesellschaft, 1901
n ...
Tafel, Julius, Ach, Benno
openaire   +3 more sources

G-quartet biomolecular nanowires [PDF]

Applied Physics Letters 80, 3331 (2002), 2002
We present a first-principle investigation of quadruple helix nanowires, consisting of stacked planar hydrogen-bonded guanine tetramers. Our results show that long wires form and are stable in potassium-rich conditions. We present their electronic bandstructure and discuss the interpretation in terms of effective wide-bandgap semiconductors.
arxiv   +1 more source

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

Radiological Evaluation of Huntington’s Disease: A Case Report [PDF]

Journal of Clinical and Diagnostic Research
Huntington’s Disease (HD) is a rare neurodegenerative condition inherited in an autosomal dominant pattern, where Gamma Amino Butyric Acid-ergic (GABAergic) neurons in the basal ganglia progressively deteriorate.
Soumyabrata Debnath, R Harshith
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

Calculation of the Stabilization Energies of Oxidatively Damaged Guanine Base Pairs with Guanine [PDF]

Molecules, 2012
DNA is constantly exposed to endogenous and exogenous oxidative stresses. Damaged DNA can cause mutations, which may increase the risk of developing cancer and other diseases. G:C-C:G transversions are caused by various oxidative stresses. 2,2,4-Triamino-5(2H)-oxazolone (Oz), guanidinohydantoin (Gh)/iminoallantoin (Ia) and spiro-imino-dihydantoin (Sp ...
Suzuki, Masayo, Kino, Katsuhito, Morikawa, Masayuki, Kobayashi, Takanobu, Komori, Rie, Miyazawa, Hiroshi   +5 more
openaire   +4 more sources

Protonated nucleobases are not fully ionized in their chloride salt crystals and form metastable base pairs further stabilized by the surrounding anions

IUCrJ, 2018
This paper presents experimental charge-density studies of cytosinium chloride, adeninium chloride hemihydrate and guaninium dichloride crystals based on ultra-high-resolution X-ray diffraction data and extensive theoretical calculations.
Prashant Kumar, Malgorzata Katarzyna Cabaj, Aleksandra Pazio, Paulina Maria Dominiak   +3 more
doaj   +1 more source

Application of Ammonium Persulfate for Selective Oxidation of Guanines for Nucleic Acid Sequencing

Molecules, 2017
Nucleic acids can be sequenced by a chemical procedure that partially damages the nucleotide positions at their base repetition. Many methods have been reported for the selective recognition of guanine.
Yafen Wang, Chaoxing Liu, Tingting Hong, Fan Wu, Shuyi Yu, Zhiyong He, Wuxiang Mao, Xiang Zhou   +7 more
doaj   +1 more source

The Two Faces of the Guanyl Radical: Molecular Context and Behavior

Molecules, 2021
The guanyl radical or neutral guanine radical G(-H)• results from the loss of a hydrogen atom (H•) or an electron/proton (e–/H+) couple from the guanine structures (G). The guanyl radical exists in two tautomeric forms.
Chryssostomos Chatgilialoglu
doaj   +1 more source

Electronic properties of guanine-based nanowires [PDF]

Sol. St. Commun. 113, 577 (2004)., 2004
We present a first-principle study of the electronic and conduction properties of a few classes of nanowires constituted of guanine (G) molecules, self-assembled in different geometries. We first analyze the effect of the vertical $\pi$-$\pi$ interaction in model G-stack columns.
arxiv   +1 more source