Characterization of a monomeric disintegrin, ocellatusin, present in the venom of the Nigerian carpet viper, Echis ocellatus

Smith, J. B., Theakston, R.David G., Coelho, A. L. J., Barja-Fidalgo, C., Calvete, J. J. and Marcinkiewicz, C. (2002) 'Characterization of a monomeric disintegrin, ocellatusin, present in the venom of the Nigerian carpet viper, Echis ocellatus'. FEBS Letters, Vol 512, Issue 1-3, pp. 111-115.

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Abstract

Ocellatusin is a new RGD-containing short monomeric disintegrin. It is a better inhibitor of alpha(5)beta(1) integrin and a more potent inducer of the expression of a ligand-induced binding site epitope on beta(1) integrin subunit than echistatin. In further contrast to echistatin, ocellatusin has a direct chemotactic stimulus on human neutrophils in vitro. The distinct effects of these two close evolutionarily related disintegrins might be explained by the presence of methionine-22 and histidine-29 in the RGD loop of ocellatusin, which are arginine and aspartic acid, respectively, in echistatin. These mutations may modulate the conformation and/or recognition properties of the integrin-binding loop of ocellatusin.

Item Type:	Article
Subjects:	QU Biochemistry > Cells and Genetics > QU 350 Cellular structures QU Biochemistry > Proteins. Amino Acids. Peptides > QU 58.5 DNA. WD Disorders of Systemic, Metabolic or Environmental Origin, etc > Animal Poisons > WD 410 Reptiles
Faculty: Department:	Groups (2002 - 2012) > Molecular & Biochemical Parasitology Group
Digital Object Identifer (DOI):	https://doi.org/10.1016/s0014-5793(02)02233-0
Depositing User:	Lynn Roberts-Maloney
Date Deposited:	13 Feb 2014 11:31
Last Modified:	06 Feb 2018 13:05
URI:	https://archive.lstmed.ac.uk/id/eprint/2985

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