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1aq6

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{{STRUCTURE_1aq6| PDB=1aq6 | SCENE= }}
{{STRUCTURE_1aq6| PDB=1aq6 | SCENE= }}
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'''STRUCTURE OF L-2-HALOACID DEHALOGENASE FROM XANTHOBACTER AUTOTROPHICUS'''
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===STRUCTURE OF L-2-HALOACID DEHALOGENASE FROM XANTHOBACTER AUTOTROPHICUS===
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==Overview==
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The L-2-haloacid dehalogenase from the 1,2-dichloroethane degrading bacterium Xanthobacter autotrophicus GJ10 catalyzes the hydrolytic dehalogenation of small L-2-haloalkanoic acids to yield the corresponding D-2-hydroxyalkanoic acids. Its crystal structure was solved by the method of multiple isomorphous replacement with incorporation of anomalous scattering information and solvent flattening, and was refined at 1.95-A resolution to an R factor of 21.3%. The three-dimensional structure is similar to that of the homologous L-2-haloacid dehalogenase from Pseudomonas sp. YL (1), but the X. autotrophicus enzyme has an extra dimerization domain, an active site cavity that is completely shielded from the solvent, and a different orientation of several catalytically important amino acid residues. Moreover, under the conditions used, a formate ion is bound in the active site. The position of this substrate-analogue provides valuable information on the reaction mechanism and explains the limited substrate specificity of the Xanthobacter L-2-haloacid dehalogenase.
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{{ABSTRACT_PUBMED_9407083}}
==About this Structure==
==About this Structure==
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[[Category: Rozeboom, H J.]]
[[Category: Rozeboom, H J.]]
[[Category: L-2-haloacid dehalogenase]]
[[Category: L-2-haloacid dehalogenase]]
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Revision as of 14:23, 30 June 2008

Image:1aq6.png

Template:STRUCTURE 1aq6

STRUCTURE OF L-2-HALOACID DEHALOGENASE FROM XANTHOBACTER AUTOTROPHICUS

Template:ABSTRACT PUBMED 9407083

About this Structure

1AQ6 is a Single protein structure of sequence from Xanthobacter autotrophicus. Full crystallographic information is available from OCA.

Reference

Three-dimensional structure of L-2-haloacid dehalogenase from Xanthobacter autotrophicus GJ10 complexed with the substrate-analogue formate., Ridder IS, Rozeboom HJ, Kalk KH, Janssen DB, Dijkstra BW, J Biol Chem. 1997 Dec 26;272(52):33015-22. PMID:9407083

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