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Free Radical Research Communications Volume 6, 1989 - Issue 2-3
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Original Article

Free Radical Formation in Nucleosides and Nucleotides of Guanine: ESR and Endor of Guanosine 5′-Monophosphate and Guanosine: Dimethylformamide X-Irradiated at 10K

Einar Sagstuen University of Oslo, Norway
,
Eli O. Hole University of Oslo, Norway
,
William H. Nelson Georgia State University, Atlanta, GA, USA
&
David M. Close East Tennessee State University, Johnson City, TN, USA
Pages 91-92 | Published online: 07 Jul 2009

References

  • Gräslund A., Ehrenberg A., Rupprecht A., Strom G. Ionic base radicals in γ-irradiated DNA. Biochim. Biophys. Acta. 1971; 254: 172
  • Hüttermann J., Voit K., Oloff H., Gräslund A., Rupprecht A. Specific formation of electron gain and loss centres in X-irradiated oriented fibres of DNA at low temperature. Discussion of the Chemical Society 1984; 78: 135
  • Cullis P. M., Symons M. C.R. Mechanisms of DNA damage and repair, M. G. Simic, L. Grossman, A. C. Upton. Plenum Press, New York 1986
  • Gregoli S., Olast M., Bertinchamps A. J. Radiolytic pathways in γ-irradiated DNA: influence of chemical and conformational factors. Radiat. Res. 1982; 89: 238
  • Close D. M., Sagstuen E., Nelson W. H. ESR study of the guanine cation. J. Chem. Phys. 1986; 82: 4386
  • Close D. M., Nelson W. H., Sagstuen E. Radical formation in X-irradiated single crystals of guanine hydrochloride monohydrate. II. ESR and ENDOR in the range 10–11 K. Radiat. Res. 1987; 112: 283
  • Close D. M., Sagstuen E., Nelson W. H. Radical formation in X-irradiated single crystals of guanine hydrochloride monohydrate. III. Secondary radicals and reaction mechanisms. Radiat. Res. 1988, in press
  • Strand P., Sagstuen E., Lehner T., Hüttermann J. Free radical formation in crystals of guanine hydrochloride dihydrate: an ESR and ENDOR study. Internat. J. Radial. Biol. 1987; 51: 303
  • Nelson W. H., Hole E. O., Sagstuen E., Close D. M. ESR/ENDOR study of guanine HCl 2H2O X-irradiated at 20K. Int. J. Radiat. Biol. 1988, in press
  • Hole E. O., Sagstuen E. Free radical formation in crystals of 2′-deoxyguanosine 5′monopho-sphate irradiated at 15K. Radiat. Res. 1987; 109: 190
  • Hole E. O., Nelson W. H., Close D. M., Sagstuen E. ESR and ENDOR study of the guanine cation. Secondary product in 5′-dGMP. J. Chem. Phys. 1987; 86: 5218
  • Sagstuen E., Awadelkarim O., Lund A., Masiakowski J. Trapping site geometry of N2H4+ radical ion in X-irradiated single crystals of N2H5HC2O4: an ENDOR study. J. Chem. Phys. 1986; 85: 3223

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