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Vacuum ultraviolet circular dichroism spectrum of β-turn in solution

Brahmachari, Samir K and Ananthanarayanan, VS and Brahms, S and Brahms, J and Rapaka, Rao S and Bhatnagar, Rajendra S (1979) Vacuum ultraviolet circular dichroism spectrum of β-turn in solution. In: Biochemical and Biophysical Research Communications, 86 (3). pp. 605-612.

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Official 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 β-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 β-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 β-turn conformation. These CD spectral features can thus be used to distinguish the β-turn conformation from the β-structure in solution.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Biological Sciences > Molecular Biophysics Unit
Date Deposited: 28 Dec 2010 06:25
Last Modified: 28 Dec 2010 06:26
URI: http://eprints.iisc.ernet.in/id/eprint/33782

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