1jw6

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Revision as of 16:30, 20 November 2007

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spinqualitylabelsall models 1jw6, resolution 1.93Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image

Crystal Structure of the Complex of Concanavalin A and Hexapeptide

Overview

The X-ray structure analysis of a cross-linked crystal of concanavalin A, soaked with a hexapeptide molecule as a probe molecule showed an electron, density corresponding to full occupation in the binding pocket. The site, lies on the surface of concanavalin A and is surrounded by three, symmetry-related molecules. The crystal structure of the hexapeptide, complex was refined at 1.93-A resolution, to an R-factor of 19% (Rfree, factor of 25%), with an RMS deviation in bond distances of 0.01 A. The, model includes all 237 residues of concanavalin A, one manganese ion, one, calcium ion, 95 water molecules, one glutaraldehyde molecule, one, isopropanol molecule, and one hexapeptide molecule. This X-ray structure, analysis also provides an approach to mapping the binding surface of, crystalline protein with a probe molecule that is dissolved in the mixture, of organic solvent with water or in neat organic solvent but is hardly, dissolved in aqueous solution.

About this Structure

1JW6 is a Single protein structure of sequence from Canavalia ensiformis with MN, CA, PTD and IPA as ligands. Full crystallographic information is available from OCA.

Reference

Crystal structure of the complex of concanavalin A and hexapeptide., Zhang Z, Qian M, Huang Q, Jia Y, Tang Y, Wang K, Cui D, Li M, J Protein Chem. 2001 Jul;20(5):423-9. PMID:11732694

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