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Synthetic peptides as chemoattractants for bull spermatozoa structure activity correlations

Iqbal, M and Shivaji, S and Vijayasarathy, S and Balaram, P (1980) Synthetic peptides as chemoattractants for bull spermatozoa structure activity correlations. In: Biochemical and Biophysical Research Communications, 96 (1). pp. 235-242.

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The ability of various synthetic peptide analogs of. Formyl-Met-Leu-Phe to induce chemotaxis in bull sperm is compared using an inverted capillary assay. The formyl group is essential for chemotactic activity and corresponding t-butyloxycarbonyl tripeptides are inactive. Sequence analogs, Formyl-Met-Phe-Leu, Formyl-Leu-Met-Phe and Formyl-Leu-Phe-Met are active. Replacement of Met and Leu by Pro does not diminish activity. Formyl-Met-Leu-Phe-NH2 is active suggesting that electrostatic interactions involving the carboxyl group may be unimportant in receptor interactions. The studies establish the importance of an amino terminal formyl group and a sequence of at least three hydrophobic residues, for inducing sperm chemotaxis.

Item Type: Journal Article
Publication: Biochemical and Biophysical Research Communications
Publisher: Elsevier science
Additional Information: Copyright of this article belongs to Elsevier science.
Department/Centre: Division of Biological Sciences > Molecular Biophysics Unit
Date Deposited: 05 Feb 2010 08:35
Last Modified: 19 Sep 2010 05:35
URI: http://eprints.iisc.ac.in/id/eprint/21096

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