## Abstract The effect of magnesium ions on the parameters of the DNA helix‐coil transition has been studied for the concentration range 10^−6^–10^−1^__M__ at the ionic strengths of 10^−3^__M__ Na^+^. Special attention has been given to the region of low ion concentrations and to the effect of poly
Salt dependence and ion specificity of the coil–helix transition of furcellaran
✍ Scribed by Wei Zhang; Lennart Piculell; Svante Nilsson
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1991
- Tongue
- English
- Weight
- 850 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0006-3525
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📜 SIMILAR VOLUMES
Formulas are derived which relate the maximum slope of the helix-coil transition in synthetic polynucleotides to the stacking free energy and to the exponent k in the expression for the probability of ring closure for polymer chains. The exact value of k has not yet been determined. By use of the de
Thermal denaturation of DNA's and the corresponding helix-coil transformation of artificial polyribonucleic and polydeoxyribonucleic acids have been studied extensively both theoretically1-l3 and e ~p e r i m e n t a l l y . l ~-~~ Much less work has been carried out on the properties of these polyn
## Synopsis The thermal denaturation method was employed to study the effect of Ca2+ and Mn2+ ions on the DNA helix-coil transition parameters at Na+ concentrations of 10-3-10-1M. A t low ion concentrations, thermal stability increases, the melting range passes through a maximum, and the denaturat
The transition temperatures t( and enthalpy changes AH in the helix-coil transition of' solid tendon collagen soaked in a solution containing one of the following stabilizing o r destabilizing agents, HCHO, NaF, NaCI, NaI, NaBr, NaOH, NH2CONH2, CaCI?, MgCIz, were measured as a function of molar conc