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A designed beta-hairpin peptide in crystals

Karle, Isabella L and Awasthi, Satish K and Balaram, Padmanabhan (1996) A designed beta-hairpin peptide in crystals. In: Proceedings of the National Academy of Sciences of the United States of America, 93 (16). pp. 8189-8193.

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Abstract

Beta-hairpin structures have been crystallographically characterized only in very short acyclic peptides, in contrast to helices. The structure of the designed beta-hairpin, t-butoxycarbonyl-Leu-Val-Val-D-Pro-Gly-Leu-Val-Val-Ome in crystals is described. The two independent molecules of the octapeptide fold into almost ideal beta-hairpin conformations with the central D-Pro-Gly segment adopting a Type II’ beta-turn conformation. The definitive characterization of a beta-hairpin has implications for de novo peptide and protein design, particularly for the development of three- and four-stranded beta-sheets.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to National Academy of Sciences.
Keywords: two conformers;octapeptides;ideal pleated sheets;beta-turn nucleating segment
Department/Centre: Division of Biological Sciences > Molecular Biophysics Unit
Date Deposited: 30 Oct 2004
Last Modified: 19 Sep 2010 04:17
URI: http://eprints.iisc.ernet.in/id/eprint/2235

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