Brahmachari, Samir K. ; Ananthanarayanan, V. S. ; Brahms, S. ; Brahms, J. ; Rapaka, Rao S. ; Bhatnagar, Rajendra S. (1979) Vacuum ultraviolet circular dichroism spectrum of β-turn in solution Biochemical and Biophysical Research Communications, 86 (3). pp. 605-612. ISSN 0006-291X
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Official URL: http://dx.doi.org//10.1016/0006-291X(79)91756-X
Related URL: http://dx.doi.org/10.1016/0006-291X(79)91756-X
Abstract
The vacuum ultraviolet circular dichroism spectrum of an isolated 4 → 1 hydrogen bonded beta-turn is reported. The observed spectrum of N-acetyl-Pro-Gly-Leu-OH at - 40°C in trifluoroethanol is in good agreement with the theoretically calculated CD spectrum of the beta-turn conformation. This spectrum, particularly the presence of a strong negative band around 180 nm and a large ratio [θ]201/[θ]225, can be taken as a characteristic feature of the isolated ß-turn conformation. These CD spectral features can thus be used to distinguish the ß-turn conformation from the beta-structure in solution.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 6437 |
| Deposited On: | 20 Oct 2010 10:24 |
| Last Modified: | 23 May 2011 06:52 |
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