Results 21 to 30 of about 16,097 (238)
6-[(2-Methylphenyl)sulfanyl]-5-propylpyrimidine-2,4(1H,3H)-dione
Acta Crystallographica Section E, 2014 In the title pyrimidine-2,4-dione derivative, C14H16N2O2S, the dihedral angle between the six-membered rings is 77.81 (10)°. The molecule is twisted about the Cp—S (p = pyrimidine) bond, with a C—S—C—N torsion angle of −59.01 (17)°. An intramolecular C—H.
Nadia G. Haress +4 more
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Crystal structure of N′-hydroxypyrimidine-2-carboximidamide
Acta Crystallographica Section E, 2014 The title compound, C5H6N4O, is approximately planar, with an angle of 11.04 (15)° between the planes of the pyrimidine ring and the non-H atoms of the carboximidamide unit. The molecule adopts an E configuration about the C=N double bond. In the crystal,
Nithianantham Jeeva Jasmine +2 more
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Damage mapping techniques and the light they have shed on canonical and atypical UV photoproducts
Frontiers in Genetics, 2023 Ultraviolet (UV) light is a pervasive threat to the DNA of terrestrial organisms. UV light induces helix-distorting DNA lesions, primarily cyclobutane pyrimidine dimers (CPDs) that form between neighboring pyrimidine bases.
Kaitlynne A. Bohm, John J. Wyrick
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Acta Crystallographica Section E, 2012 In the title compound, C25H29BrN4O3S2, the benzene rings bridged by the sulfonamide group are tilted relative to each other by 63.9 (1)° and the dihedral angle between the sulfur-bridged pyrimidine and benzene rings is 64.9  ...
Mohan Kumar +5 more
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Evaluierung zellulärer Marker zur Charakterisierung der Schutzleistung von Sonnenschutzprodukten [PDF]
, 2013 Summary: Great importance is attributed globally to the protection against UV radiation and the resulting short and/or long-term damaging effects on the human skin.
Walter, Nicole
core +1 more source
Acta Crystallographica Section E, 2012 In the title compound, C21H20BrClN4O4S2, the benzene rings bridged by the sulfonamide group are tilted relative to each other by a dihedral angle of 70.2 (1)° and the dihedral angle between the sulfur-bridged pyrimidine and benzene ...
Mohan Kumar +5 more
doaj +1 more source
, 1969 Pyrimidine dimers of cyclobutane type were found in the RNA of tobacco mosaic virus when irradiated free (about 1.0 per photoreactivable lesion), but not in the RNA irradiated inside the virus.
Carpenter, J. M., Kleczkowski, A.
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(RS)-(2-Bromo-4-fluoroanilino)[2-(4,6-dimethoxypyrimidin-2-yloxy)phenyl]acetonitrile
Acta Crystallographica Section E, 2009 In the title compound, C20H16BrFN4O3, the pyrimidine and 2-bromo-4-fluorophenyl rings are twisted away from the central benzene ring, making dihedral angles of 77.7 (1) and 85.5 (1), respectively.
Yuan-xiang Li
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, 2010 Cyclobutane pyrimidine dimer (CPD) photolyases convert UV-induced CPDs in DNA into monomers using visible light as the energy source. Two phr genes encoding class II CPD photolyases PHR1 and PHR2 have been identified in Chrysodeixis chalcites ...
Xu, F. (Fang) +12 more
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Crystal structure of 6-chloro-5-isopropylpyrimidine-2,4(1H,3H)-dione
Acta Crystallographica Section E, 2014 In the molecule of the title compound, C7H9ClN2O2, the conformation is determined by intramolecular C—H...O and C—H...Cl hydrogen bonds, which generate S(6) and S(5) ring motifs.
Nadia G. Haress +4 more
doaj +1 more source