Conformational effects on DNA polymers due to physiological concentrations of divalent metal ions
โ Scribed by Vasantha Narasimhan; Ashley M. Bryan
- Book ID
- 108324041
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 261 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0020-1693
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๐ SIMILAR VOLUMES
## Abstract Changes in the conformation of poly(G), poly(C), poly(U), and poly(I) in the presence of divalent metal ions Mg^2+^, Ca^2+^, Mn^2+^, Co^2+^, Ni^2+^, Cu^2+^, Cd^2+^, and Zn^2+^ have been measured by means of ORD and u.v. spectra. Mg^2+^ and Ca^2+^ ions stabilize helical structures of all
The nonlinear Poisson-Boltzmann equation is solved for a cylindrical polyelectrolyte solution containing mono-and divalent counterions and monovalent coions. The finite size of the ions is taken into account by the introduction of the distances of closest approach between the ionic charges and the s