The structure of poly(dA):poly(dT) in a condensed state and in solution
β Scribed by Lipanov, A.A.; Chuprina, V.P.
- Book ID
- 121844021
- Publisher
- Oxford University Press
- Year
- 1987
- Tongue
- English
- Weight
- 971 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0305-1048
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## Abstract CD and uv absorption data showed that high molecular weight poly(dAβdT) Β· poly(dAβdT), at 298 K, undergoes an acidβinduced transition from Bβdouble helix to random coil in NaCl solutions of different concentrations, ranging from 0.005 to 0.600__M__. Similarly, titration of the polynucle
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