Rates for Repair of pBR 322 DNA Radicals by Thiols as Measured by the Gas Explosion Technique: Evidence that Counter-ion Condensation and Co-ion Depletion are Significant at Physiological Ionic Strength

References

• Apontoweil P., Berends W. Isolation and initial characterization of glutathione-deficient mutants of Escherichia coli K12. Biochimica et Biophysica Acta 1975; 399: 10–22
   PubMed Web of Science ®Google Scholar
• Astor M.B., Anderson M.E., Meister A. Relationship between intracellular GSH levels and hypoxic cell radiosensitivity. Pharmacology and Therapeutics 1988; 39: 115–121
   PubMed Web of Science ®Google Scholar
• Boon P.J., Cullis P.M., Symons M.C.R., Wren B.W. Effects of ionizing radiation on deoxyribonucleic acid and related systems. Part 1: The role of oxygen. Journal of the Chemical Society Perkin Transactions 1984; II: 1393–1399
   Google Scholar
• Boon P.J., Cullis P.M., Symons M.C.R., Wren B.W. Effects of ionizing radiation on deoxyribonucleic acid. Part 2: The influence of nitroimidazole drugs on the course of radiation damage to aqueous deoxyribonucleic acid. Journal of the Chemical Society Perkin Transactions 1985; II: 1057–1061
   Google Scholar
• Bothe E., Schulte-Frohlinde D. Release of K+ and H+ from Poly U in aqueous solution upon γ and electron irradiation. Rate of strand break formation in Poly U. Zeitschrift für Naturforschung 1982; 37c: 1191–1204
   Google Scholar
• Edgren M.R. Nuclear glutathione and oxygen enhancement of radiosensitivity. International Journal of Radiation Biology 1987; 51: 3–6
   Web of Science ®Google Scholar
• Ellman G.L. Tissue sulphydryl groups. Archives of Biochemistry and Biophysics 1959; 82: 70–77
   PubMed Web of Science ®Google Scholar
• Fahey R.C. Protection of DNA by thiols. Pharmacology and Therapeutics 1987; 39: 101–108
   Web of Science ®Google Scholar
• Fahey R.C., Vojnovic B., Michael B.D. The effects of counter-ion condensation and co-ion depletion upon the rates of chemical repair of poly(U) radicals by thiols. International Journal of Radiation Biology 1991; 59: 885–899
   PubMed Web of Science ®Google Scholar
• Frankenberg D., Michael B.D., Frankenberg-Schwager M., Harbich R. Fast kinetics of the oxygen effect of DNA double-strand breakage and cell killing in irradiated yeast. International Journal of Radiation Biology 1990; 57: 485–501
   PubMed Web of Science ®Google Scholar
• Harrop H.A., Held K.D., Michael B.D. The oxygen effect: variation of the K-value and lifetimes of O2-dependent damage in some glutathione-deficient mutants of Escherichia coli. International Journal of Radiation Biology 1991, (Submitted)
   PubMed Web of Science ®Google Scholar
• Held K.D. Interactions of radioprotectors and oxygen in cultured mammalian cells. I. Dithiothreitol effects on radiation-induced cell killing. Radiation Research 1985; 101: 424–433
   PubMed Web of Science ®Google Scholar
• Held K.D., Harrop H.A., Michael B.D. Effects of oxygen and sulphydryl-containing compounds on irradiated transforming DNA. III. Reaction rates. International Journal of Radiation Biology 1984; 45: 627–636
   Web of Science ®Google Scholar
• Hutchinson F. Chemical changes induced in DNA by ionizing radiation. Progress in Nucleic Acid Research and Molecular Biology 1985; 32: 115–154
   PubMed Web of Science ®Google Scholar
• Kistler M., Summer K.H., Eckhardt F. Isolation of glutathione-deficient mutants of the yeast Saccharomyces cerevisiae. Mutation Research 1986; 173: 117–120
   PubMed Web of Science ®Google Scholar
• Koch C.J., Howell R.L. Combined radiation-protective and radiation sensitizing agents. II. Radiosensitivity of hypoxic or aerobic Chinese hamster fibroblasts in the presence of cysteamine and misonidazole: Implications for the ‘oxygen effect’ (with appendix on calculation of dose-modifying factors). Radiation Research 1981; 87: 265–283
   PubMed Web of Science ®Google Scholar
• Le Bret M., Zimm B.H. Monte Carlo determination of the distribution of ions about a cylindrical polyelectrolyte. Biopolymers 1984; 23: 271–285
   PubMed Web of Science ®Google Scholar
• Loh S.N., Dethlefsen L.A., Newton G.L., Aguilera J.A., Fahey R.C. Nuclear thiols. Technical limitations on the determination of endogenous nuclear glutathione and the potential importance of sulphydryl proteins. Radiation Research 1990; 121: 98–106
   PubMed Web of Science ®Google Scholar
• Manning G.S. The molecular theory of polyelectrolyte solutions with applications to the electrostatic properties of polynucleotides. Quarterly Reviews in Biophysics 1978; 11: 179–246
   PubMed Web of Science ®Google Scholar
• Merion M., Warren W. Purification of supercoiled plasmids from crude cell lysates using high performance anion exchange chromatography. BioTechniques 1989; 7: 60–67
   PubMed Web of Science ®Google Scholar
• Michael B.D., Adams G.E., Hewitt H.B., Jones W.B.G., Watts M.E. A post-effect of oxygen in irradiated bacteria: a submillisecond fast mixing study. Radiation Research 1973; 54: 239–251
   PubMed Web of Science ®Google Scholar
• Michael B.D., Harrop H.A., Maughan R.L. Fast response methods in the radiation chemistry of lethal damage in intact cells. Radiation Research, S. Okada, M. Imamura, T. Terashima, H. Yamaguchi. Japanese Association for Radiation Research. 1979; 288–296
   Google Scholar
• Michael B.D., Harrop H.A., Held K.D. Timescale and mechanisms of the oxygen effect in irradiated bacteria. Oxygen and Oxy-Radicals in Chemistry and Biology, M.A.J. Rodgers, E.L. Powers. Academic Press, New York 1981; 285–291
   Google Scholar
• Michael B.D., Davies S., Held K.D. Ultrafast chemical repair of DNA single and double strand break precursors in irradiated V79 cells. Mechanisms of DNA Damage and Repair, M.G. Simic, L. Grossman, A.C. Upton. Plenum, New York 1986; 89–100
   Google Scholar
• Michael B.D., Prise K.M., Fahey R.C., Folkard M. Radical multiplicity in radiation-induced DNA strand-breaks: implications for their chemical modification. Proceedings of NATO Advanced Research Workshop on Early Effects of Radiation on DNA, E.M. Fielden, P. O'Neill. 1991, (In press)
   Google Scholar
• Midander J., Deschavanne P.J., Debieu D., Malaise E.P., Revesz L. Reduced repair of potentially lethal radiation damage in glutathione synthetase-deficient human fibroblasts after X-irradiation. International Journal of Radiation Biology 1986; 49: 403–413
   Web of Science ®Google Scholar
• Okada S., Nakamura N., Sakai K. Radioprotection of intracellular genetic material. Radioprotectors and Anticarcinogens, O.F. Nygaard, M.G. Simic. Academic Press, New York 1983; 339–356
   Google Scholar
• Révész L. The role of endogenous thiols in intrinsic radioprotection. International Journal of Radiation Biology 1985; 47: 361–368
   Web of Science ®Google Scholar
• Russo A., Mitchell J.B., Finkelstein E., DeGraff W.G., Spiro I.J., Gamson J. The effects of cellular glutathione elevation on the oxygen enhancement ratio. Radiation Research 1985; 103: 232–239
   PubMed Web of Science ®Google Scholar
• Shrieve D.C., Denekamp J., Minchinton A.I. Effects of glutathione depletion by buthionine sulfoximine on radiosensitization by oxygen and misonidazole in vitro. Radiation Research 1985; 102: 283–284
   PubMed Web of Science ®Google Scholar
• Smoluk G.D., Fahey R.C., Calabro-Jones P.M., Aguilera J.A., Ward J.F. Radioprotection of cells in culture by WR-2721 and derivatives: Form of the drug responsible for protection. Cancer Research 1988a; 48: 3641–3647
   PubMed Web of Science ®Google Scholar
• Smoluk G.D., Fahey R.C., Ward J.F. Interaction of glutathione and other low molecular weight thiols with DNA: evidence for counter-ion condensation and co-ion depletion near DNA. Radiation Research 1988b; 114: 3–10
   PubMed Web of Science ®Google Scholar
• Zheng S., Newton G.L., Gonick G., Fahey R.C., Ward J.F. Radioprotection of DNA by thiols: Relationship between the net charge on a thiol and its ability to protect DNA. Radiation Research 1988; 114: 11–27
   PubMed Web of Science ®Google Scholar