Hosur, Ramakrishna V. ; Govil, Girjesh ; Hosur, Madhusoodan V. ; Viswamitra, M. A. (1981) Sequence effects in structures of the dinucleotides d-pApT AND d-pTpA Journal of Molecular Structure, 72 . pp. 261-267. ISSN 0022-2860
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/002228...
Related URL: http://dx.doi.org/10.1016/0022-2860(81)85027-2
Abstract
The H1', H2' and H" regions of the 270-MHz PMR spectra of two deoxydinucleotides, d-pTpA and d-pApT, have been analyzed. The coupling constants in the sugar ring indicate that both A and T sugars have a tendency to acquire 2E conformations. There is also a marginal difference in the 2E populations of the T sugar in the two dinucleotides. The trends in the chemical shifts of base protons indicate different stacking of the bases in d-pApT and d-pTpA. The sequence effects on base stacking and pentose conformation are discussed.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 16784 |
| Deposited On: | 15 Nov 2010 13:17 |
| Last Modified: | 02 Jun 2011 09:54 |
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