Ionic Base Radicals in γ-irradiated Oriented Non-deuterated and Fully Deuterated DNA
- 1 January 1975
- journal article
- research article
- Published by Taylor & Francis in International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine
- Vol. 28 (4) , 313-323
- https://doi.org/10.1080/09553007514551101
Abstract
The free radicals induced by γ-irradiation at 77 K in non-deuterated and fully deuterated oriented samples of moist algal DNA have been studied by electron paramagnetic resonance (e.p.r.). The e.p.r. spectra from the non-deuterated sample were found to be similar to those from calf-thymus DNA studied previously. Numerical spectra simulations were performed based on the previously proposed interpretation of the DNA spectra at 77 K in terms of a mixture of two spectral components arising from anionic and cationic base radicals (probably on thymine and guanine, respectively). The simulations were found to account satisfactorily for the main characteristics of the e.p.r. spectra from both the non-deuterated and the fully deuterated algal DNA sample.Keywords
This publication has 24 references indexed in Scilit:
- ESR Kinetics of a Free Radical Conversion in γ-Irradiated Oriented DNARadiation Research, 1975
- Primary radiation damage in thymidineThe Journal of Chemical Physics, 1975
- Ionic base radicals in γ-irradiated DNABiochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1971
- FREE RADICALS FROM BIOLOGICAL PURINES AND PYRIMIDINESAnnals of the New York Academy of Sciences, 1969
- Infrared studies of deoxyribonucleic acids, their constituents and analogues III. Evidence of slow isotopic exchange of hydrogen attached to carbon in DNABiochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1967
- Electron Spin Resonance of Gamma-Irradiated Oriented DNA Prepared by Wet SpinningScience, 1967
- Theoretical study of the electronic properties of the purine and pyrimidine components of the nucleic acidsTheoretical Chemistry Accounts, 1966
- Thymidine-like Electron Spin Resonance Spectra in Gamma-irradiated Deoxyribonucleic AcidNature, 1963
- Mass cultivation of algae in pure heavy waterBiotechnology & Bioengineering, 1962
- Thermal denaturation of ordinary and fully deuteriated DNA in H2O and D2OJournal of Molecular Biology, 1962