A potassium‐39 NMR study of potassium binding to double‐helical DNA
- 1 July 1984
- journal article
- research article
- Published by Wiley in European Journal of Biochemistry
- Vol. 142 (1) , 133-137
- https://doi.org/10.1111/j.1432-1033.1984.tb08260.x
Abstract
The binding of K+ to double-helical DNA was examined by 39K NMR. The results obtained are in substantial agreement with previous measurements of 23Na+ binding to DNA. In both cases the fractional neutralization of DNA phosphate charge appears independent of the total univalent cation concentration. Further, the dependences of the 23Na+ and 39K+ linewidths on Mg2+ and on temperature are strikingly similar. The implications of these results are discussed in terms of current theories of counterion binding to cyclindrical polyelectrolytes.This publication has 19 references indexed in Scilit:
- Potassium‐39 and sodium‐23 NMR studies of cation binding to phosvitinEuropean Journal of Biochemistry, 1984
- Sodium-23 nuclear magnetic resonance studies of cation-deoxyribonucleic acid interactionsBiochemistry, 1983
- 43Ca NMR studies of calcium binding to proteins: Interpretation of experimental data by bandshape analysisJournal of Magnetic Resonance (1969), 1983
- Potassium-39 nuclear magnetic resonance of potassium-ionophore complexes: Chemical shifts, relaxation times, and quadrupole coupling constantsJournal of Magnetic Resonance (1969), 1983
- A molecular approach to quadrupole relaxation. Monte Carlo simulations of dilute Li+, Na+, and Cl− aqueous solutionsJournal of Magnetic Resonance (1969), 1982
- Nearly exponential quadrupolar relaxation. A perturbation treatmentJournal of Magnetic Resonance (1969), 1981
- Ion Binding in Biological Systems as Studied by NMR SpectroscopyPublished by Wiley ,1981
- Applications of quadrupolar effects in NMR for studies of ion binding in biological and model systemsJournal of Magnetic Resonance (1969), 1978
- The charged colloidal cylinder with a gouy double layerJournal of Colloid and Interface Science, 1975
- The Physical State of Diffusible Ions in CellsAnnual Review of Biophysics and Bioengineering, 1975