Results 231 to 240 of about 60,531 (292)
Adhesive Materials Utilizing a Thymine–Adenine Interaction and Thymine Photodimerization
A cross-linking reagent having two adenine units was mixed with polymers bearing thymine units to form adhesive materials utilizing both intermolecular hydrogen bonding and in situ formation of covalent bonds. In the case of 58 mol % of adenine units relative to thymine units, formation of intermolecular hydrogen bonds because of a thymine-adenine ...
Nobuhiro, Ishikawa +2 more
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Thymine-metal ion interactions: relevance for thymine quartet structures
Apart from their function as counter ions for the charge neutralization of nucleic acids, alkali metal ions play important roles in stabilizing particular multistranded nucleic acids, e.g. guanine quartets in telomeres and uracil (U) or thymine (T) quartets. Here X-ray crystal structure determinations of a series of alkali metal ions (Na+, K+, Rb+, Cs+)
Freisinger, Eva +2 more
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More than 50% of colon cancer-associated mutations in the p53 tumor suppressor gene are C-->T transitions. The majority of them locate in CpG dinucleotides and are thought to have arisen through spontaneous hydrolytic deamination of 5-methylcytosine. This deamination process gives rise to G.T mispairs that need to be repaired to G.C in order to avoid C-
Hardeland, U. +5 more
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Thymine-Thymine Adduct as a Photoproduct of Thymine
Science, 1968A product isolated from thymine irradiated with ultraviolet light in frozen aqueous solution undergoes dehydration on heating with acids. As judged by elemental analysis, mass, ultraviolet, infrared, and nuclear magnetic resonance spectra, the most probable structures for this compound and its dehydration product, respectively, are 5-hydroxy-6-4′-[5 ...
A J, Varghese, S Y, Wang
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Kinetics and mechanism of thymine degradation by TiO2 photocatalysis
SSCI-VIDE+CARE+FDA:CGUInternational audienceThe advanced oxidation processes were examined toward the degradation of thymine (C5H6N2O2), a type of nucleic acid from the pyrimidine family.
F Dappozze, Chantal Guillard
exaly +2 more sources
Physical Chemistry Chemical Physics, 2006
We discuss the photochemistry and photodissociation dynamics of thymine as revealed by two-colour photofragment Doppler spectroscopy and by one-colour slice imaging. Thymine is optically excited into the pipi* state, known to deactivate quickly.
Michael, Schneider +5 more
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We discuss the photochemistry and photodissociation dynamics of thymine as revealed by two-colour photofragment Doppler spectroscopy and by one-colour slice imaging. Thymine is optically excited into the pipi* state, known to deactivate quickly.
Michael, Schneider +5 more
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Crystal and Molecular Structure of a Thymine-Thymine Adduct
Science, 1969Thymine-thymine adduct is a product isolated from thymine irradiated with ultraviolet light in frozen aqueous solution. This compound is presumably formed through the rearrangement of an initial photoproduct. Single crystal x-ray diffraction analysis has confirmed the molecular formula of the adduct, 5-hydroxy-6-4′-(5′-methylpyrimid-2′-one ...
I L, Karle, S Y, Wang, A J, Varghese
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Radiation-induced Formation of Thymine-thymine Crosslinks
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine, 1984The formation of dimers upon gamma-irradiation of thymine, thymidine and thymidine-5'-monophosphate in N2O-saturated aqueous solution is reported. A method using capillary gas chromatography-mass spectrometry was developed for their separation and identification.
M, Dizdaroglu, M G, Simic
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STRUCTURE OF A THYMINE‐THYMINE ADDUCT FORMED BY MENADIONE PHOTOSENSITIZATION
Photochemistry and Photobiology, 1993Abstract— The structure of one of the dithymine adducts formed by near‐UV photosensitization of aqueous oxygenated thymine in the presence of 2‐methyl‐ 1, 4‐naphthoquinone is reported. The compound, 6′β‐hydroxy‐5′β‐1 ‐ [5‐methylpyrimidinyl‐ 2,4‐dione]‐5′‐6′‐dihydrothymine has one thymine ring (ring I) linked through the 1‐nitrogen atom to the C5′ atom ...
H, Katz, W, Stallings, J P, Glusker
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