Light Scattering and Viscosimetric Studies on DNA after the Photoreaction with Some Furocoumarins
Open Access
- 1 July 1968
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 23 (7) , 943-945
- https://doi.org/10.1515/znb-1968-0711
Abstract
The light scattering measurements and the viscosimetric “i-assay” performed on native DNA solutions before and after irradiation at 3655 Å in the presence of furocoumarins show that the C4-cycloadditions of furocoumarins to the 5,6-double bond of the pyrimidine bases of DNA, which take place in the photoreactions, produce neither breakages of the polynucleotide chains nor relevant modifications of the macromolecule conformation.Keywords
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