1nkg

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Image:1nkg.gif

1nkg, resolution 1.50Å

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Rhamnogalacturonan lyase from Aspergillus aculeatus

Overview

Rhamnogalacturonan lyase (RG-lyase) specifically recognizes and cleaves, alpha-1,4 glycosidic bonds between L-rhamnose and D-galacturonic acids in, the backbone of rhamnogalacturonan-I, a major component of the plant cell, wall polysaccharide, pectin. The three-dimensional structure of RG-lyase, from Aspergillus aculeatus has been determined to 1.5 A resolution, representing the first known structure from polysaccharide lyase family 4, and of an enzyme with this catalytic specificity. The 508-amino acid, polypeptide displays a unique arrangement of three distinct modular, domains. Each domain shows structural homology to non-catalytic domains, from other carbohydrate active enzymes.

About this Structure

1NKG is a Single protein structure of sequence from Aspergillus aculeatus with CA and SO4 as ligands. Full crystallographic information is available from OCA.

Reference

Rhamnogalacturonan lyase reveals a unique three-domain modular structure for polysaccharide lyase family 4., McDonough MA, Kadirvelraj R, Harris P, Poulsen JC, Larsen S, FEBS Lett. 2004 May 7;565(1-3):188-94. PMID:15135077

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