Results 1 to 10 of about 158,435 (218)

Guanine in Fishes' Skins [PDF]

Nature, 1895
IN a joint paper by Mr. J. T. Cunningham and myself (Phil. Trans. vol. clxxxiv., 1893, B, pp. 765–812), we have ventured to question the accuracy of the statement made in many text-books of physiological chemistry, that guanine occurs in combination with calcium in the skin of fishes. We found that the guanine occurs in the free state.
CHAS. A. MACMUNN
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Biomineralization and Properties of Guanine Crystals

Molecules, 2023
Guanine crystals with unique optical properties in organisms have been extensively studied and the biomineralization principles of guanine are being established.
Haoxin Hu, Rongrong Xue, Fenghua Chen
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Platinum Compound on Gold–Magnesia Hybrid Structure: A Theoretical Investigation on Adsorption, Hydrolysis, and Interaction with DNA Purine Bases [PDF]

Nanomaterials
Cisplatin-based platinum compounds are important clinical chemotherapeutic agents that participate in most tumor chemotherapy regimens. Through density-functional theory calculations, the formation and stability of the inorganic oxide carrier, the ...
Zhenjun Song, Mingyue Liu, Aiguo Zhong, Meiding Yang, Zhicai He, Wenmin Wang, Hongdao Li   +6 more
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The Structure of Guanine Propionate [PDF]

Journal of Biological Chemistry, 1961
Usama Al-Khalidi, Gordon R. Greenberg
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Detection of Pathogens and Antimicrobial Resistance Genes at Low Concentration via Electrochemical Oligonucleotide Tags

Engineering Proceedings, 2023
Pathogens can be detected electrochemically by measuring guanine oxidation signals generated from RNA or DNA hybridized to a biosensor working electrode. However, the associated limit of detection (LOD) is not sufficiently low for widespread clinical use.
Neil Gordon, Raj Bawa, Garry Palmateer
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Tautomerism of Guanine Analogues [PDF]

Biomolecules, 2020
Tautomerism of nucleic acid (NA) bases is a crucial factor for the maintenance and translation of genetic information in organisms. Only canonical tautomers of NA bases can form hydrogen-bonded complexes with their natural counterparts. On the other hand, rare tautomers of nucleobases have been proposed to be involved in processes catalysed by NA ...
Jakub Radek Štoček, Martin Dračínský   +1 more
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Diversity of Parallel Guanine Quadruplexes Induced by Guanine Substitutions [PDF]

International Journal of Molecular Sciences, 2020
Recently, we reported an inhibitory effect of guanine substitutions on the conformational switch from antiparallel to parallel quadruplexes (G4) induced by dehydrating agents. As a possible cause, we proposed a difference in the sensitivity of parallel and antiparallel quadruplexes to the guanine substitutions in the resulting thermodynamic stability ...
Klára Bednářová, Michaela Vorlíčková, Daniel Renčiuk   +2 more
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Investigating the Role of Guanosine on Human Neuroblastoma Cell Differentiation and the Underlying Molecular Mechanisms

Frontiers in Pharmacology, 2021
Neuroblastoma arises from neural crest cell precursors failing to complete the process of differentiation. Thus, agents helping tumor cells to differentiate into normal cells can represent a valid therapeutic strategy.
Natale Belluardo, Giuseppa Mudò, Valentina Di Liberto, Monica Frinchi, Daniele F. Condorelli, Ugo Traversa, Francisco Ciruela, Francisco Ciruela, Renata Ciccarelli, Renata Ciccarelli, Patrizia Di Iorio, Patrizia Di Iorio, Patricia Giuliani, Patricia Giuliani   +13 more
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Synthesis and Characterization of New Guanine Complexes of Pt(IV) and Pd(II) by X-ray Diffraction and Hirshfeld Surface Analysis

Crystals, 2021
The aim of the work was to synthesize new perspective compounds of palladium and platinum with nitrogenous bases (guanine), promising for use in biomedicine and catalysis. The article describes the synthesis of new [PdCl2(HGua)2]Cl2·H2O and [PtCl5(HGua)]·
Anton Petrovich Novikov, Mikhail Alexandrovich Volkov, Alexey Vladimirovich Safonov, Mikhail Semenovich Grigoriev, Evgeny Vladilenovich Abkhalimov   +4 more
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Biogenic Guanine Crystals Are Solid Solutions of Guanine and Other Purine Metabolites [PDF]

Journal of the American Chemical Society, 2022
Highly reflective crystals of the nucleotide base guanine are widely distributed in animal coloration and visual systems. Organisms precisely control the morphology and organization of the crystals to optimize different optical effects, but little is known about how this is achieved.
Pinsk, Noam, Wagner, Avital, Cohen, Lilian, Smalley, Christopher J. H., Hughes, Colan E., Zhang, Gan, Pavan, Mariela J., Casati, Nicola, Jantschke, Anne, Goobes, Gil, Harris, Kenneth D. M., Palmer, Benjamin A.   +11 more
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