2cn2

From Proteopedia

Revision as of 16:08, 5 November 2007

CRYSTAL STRUCTURES OF CLOSTRIDIUM THERMOCELLUM XYLOGLUCANASE

Overview

The enzymatic degradation of the plant cell wall is central both to the, natural carbon cycle and, increasingly, to environmentally friendly routes, to biomass conversion, including the production of biofuels. The plant, cell wall is a complex composite of cellulose microfibrils embedded in, diverse polysaccharides collectively termed hemicelluloses. Xyloglucan is, one such polysaccharide whose hydrolysis is catalyzed by diverse, xyloglucanases. Here we present the structure of the Clostridium, thermocellum xyloglucanase Xgh74A in both apo and ligand-complexed forms., The structures, in combination with mutagenesis data on the catalytic, residues and the kinetics and specificity of xyloglucan hydrolysis reveal, a complex subsite specificity accommodating seventeen monosaccharide, moieties of the multibranched substrate in an open substrate binding, terrain.

About this Structure

2CN2 is a Single protein structure of sequence from Clostridium thermocellum with CD as ligand. Active as Xyloglucan-specific endo-beta-1,4-glucanase, with EC number 3.2.1.151 Structure known Active Site: AC1. Full crystallographic information is available from OCA.

Reference

Crystal structures of Clostridium thermocellum xyloglucanase, XGH74A, reveal the structural basis for xyloglucan recognition and degradation., Martinez-Fleites C, Guerreiro CI, Baumann MJ, Taylor EJ, Prates JA, Ferreira LM, Fontes CM, Brumer H, Davies GJ, J Biol Chem. 2006 Aug 25;281(34):24922-33. Epub 2006 Jun 13. PMID:16772298

Page seeded by OCA on Mon Nov 5 18:14:00 2007