Results 241 to 250 of about 56,080 (273)
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Photochemistry and Photobiology, 1969
Abstract— The photochemical and chemical properties of the four dimers of thymine have been studied. The extinction coefficients, reversal cross‐sections and quantum yields for reversal are presented as a function of wavelength in the range 200–289 nm.
M A, Herbert +3 more
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Abstract— The photochemical and chemical properties of the four dimers of thymine have been studied. The extinction coefficients, reversal cross‐sections and quantum yields for reversal are presented as a function of wavelength in the range 200–289 nm.
M A, Herbert +3 more
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Electronic Structure of Thymine
The Journal of Chemical Physics, 1970The electronic structures of the ground and low-lying excited states of thymine and the anions 1-HT− and 3-HT−, derived by removing a proton from nitrogen atom N3 and N1, respectively, have been described by all-electron all-integral LCAO–SCF calculations using Gaussian basis functions.
L C, Snyder, R G, Shulman, D B, Neumann
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PHOTOSENSITIZED DIMERIZATION OF THYMINE
Photochemistry and Photobiology, 1970Abstract— In contrast with previous reports from other laboratories, four isomeric dimers were isolated from the photochemical reaction of thymine sensitized by either acetone or propiophenone. Product analyses, made by use of nuclear magnetic resonance spectroscopy, showed that the distribution of dimers is dependent on the character of the solvent ...
B H, Jennings +2 more
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DNA Repair, 2008
Fifty years ago thymine dimer was discovered in the Biochemical and Biophysical Laboratory of Delft Technological University, The Netherlands, by one of the authors of this review (Beukers) as the first environmentally induced DNA lesion. It is one of the photoproducts formed between adjacent pyrimidine bases in DNA by UV irradiation, currently known ...
Beukers, R (Rudolf) +2 more
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Fifty years ago thymine dimer was discovered in the Biochemical and Biophysical Laboratory of Delft Technological University, The Netherlands, by one of the authors of this review (Beukers) as the first environmentally induced DNA lesion. It is one of the photoproducts formed between adjacent pyrimidine bases in DNA by UV irradiation, currently known ...
Beukers, R (Rudolf) +2 more
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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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Adhesive Materials Utilizing a Thymine–Adenine Interaction and Thymine Photodimerization
ACS Macro Letters, 2015A 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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Determination of laser-induced thymine–thymine dimer in DNA by LC
Journal of Pharmaceutical and Biomedical Analysis, 2002A new simple and selective high-performance liquid chromatography (HPLC) method has been developed for the determination of thymine-thymine (T-T) dimer in deoxyribonucleic acid (DNA) for the study of relationship between the yield of T-T dimer and laser irradiation conditions. The HPLC method is not disturbed by other hydrolysate formed in DNA with the
Lingxia, Zhang, Yuzhu, Hu
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DNA base stacking: The stacked uracil/uracil and thymine/thymine minima
Journal of Computational Chemistry, 2012AbstractThe potential energy surfaces of stacked uracil dimer (U/U) and stacked thymine dimer (T/T) have been explored at the counterpoise (CP)‐corrected M06‐2X/6‐31+G(d) level of theory, in the gas phase and in solution (with water and, for U/U, 1,4‐dioxane as the solvents) modeled by a continuum solvent using the polarizable continuum model ...
Ruairidh S, Hunter, Tanja, van Mourik
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Journal of Chromatography A, 1989
Abstract Extremely small amounts of thymine-thymine dimer can be extracted from thymine solutions using overloaded elution and shaving a narrow fraction at the front of the overloaded, later eluting thymine band. A two- or three-step procedure, involving the concentration and reinjection of the collected fraction, permits the preparation of solutions
A.M. Katti, R. Ramsey, G. Guiochon
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Abstract Extremely small amounts of thymine-thymine dimer can be extracted from thymine solutions using overloaded elution and shaving a narrow fraction at the front of the overloaded, later eluting thymine band. A two- or three-step procedure, involving the concentration and reinjection of the collected fraction, permits the preparation of solutions
A.M. Katti, R. Ramsey, G. Guiochon
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Journal of Fluorescence, 2019
The synthesis and spectroscopic characterization of novel nucleobase (adenine/thymine)-conjugated naphthalenediimides (NDIs), namely, NDI-AA, NDI-TT, and NDI-AT have been successfully achieved. NDI-AA, NDI-TT and NDI-AT have similar absorption in the 300-400 nm region.
Digambara, Patra +6 more
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The synthesis and spectroscopic characterization of novel nucleobase (adenine/thymine)-conjugated naphthalenediimides (NDIs), namely, NDI-AA, NDI-TT, and NDI-AT have been successfully achieved. NDI-AA, NDI-TT and NDI-AT have similar absorption in the 300-400 nm region.
Digambara, Patra +6 more
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