Helix-coil transition curves are calculated for poly (dA).poly(dT) and poly (dA-dT). poly (dA-dT) using the integral equation approach of Goel and Montroll.6 The transitions are described by the loop entropy model with the exponent of the loop entropy factor, k, remaining an arbitrary constant. The
Helical Periodicity of DNA, Poly(dA)·Poly(dT) and Poly(dA-dT)·Poly(dA-dT) in Solution
✍ Scribed by Franqois STRAUSS; Claire GAILLARD; Ariel PRUNELL
- Book ID
- 115120812
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 885 KB
- Volume
- 118
- Category
- Article
- ISSN
- 1432-1327
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Raman spectra have been recorded for poly (dG-dT) . poly(dAdC) and poly (dA-dT) . poly(dA-dT) in low salt and at high concentrations of CsF. Poly(dGdT)poly (dAdC) shows no change in the 682-cm-I guanine mode, demonstrating the absence of the Zstructure at high salt. The 790-cm-I phosphodiester symm
## Abstract CD and uv absorption data showed that high molecular weight poly(dA‐dT) · poly(dA‐dT), at 298 K, undergoes an acid‐induced transition from B‐double helix to random coil in NaCl solutions of different concentrations, ranging from 0.005 to 0.600__M__. Similarly, titration of the polynucle