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On the Application of Polyelectrolyte “Limiting Laws” to the Helix-Coil Transition of DNA. II. The Effect of Mg++ Counterions

✍ Scribed by Gerald S. Manning

Publisher
Wiley (John Wiley & Sons)
Year
1972
Tongue
English
Weight
294 KB
Volume
11
Category
Article
ISSN
0006-3525

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✦ Synopsis

The techniques of the previous article are here applied to the case for which the solution contains, in addition to excess uni-univalent salt, one equivalent of divalent counterions per mole nucleotide. In agreement with the melting temperature measurements of Dove and Davidson for Mg++, it is predicted that a region of uni-univalent salt concentration then exists in which (dT,/d log ma+) is negative. It is further predicted, in accord with experiment, that in the presence of divalent counterions, the helical form of DNA is much more stable than in their absence.

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The application of polyelectrolyte limit
The application of polyelectrolyte limiting laws to the helix–coil transition of DNA. VI. The numerical value of the axial phosphate spacing for the coil form
✍ Gerald S. Manning 📂 Article 📅 1976 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 391 KB 👁 2 views

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