3vay: Difference between revisions
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==Crystal structure of 2-Haloacid Dehalogenase from Pseudomonas syringae pv. Tomato DC3000== | ==Crystal structure of 2-Haloacid Dehalogenase from Pseudomonas syringae pv. Tomato DC3000== | ||
<StructureSection load='3vay' size='340' side='right' caption='[[3vay]], [[Resolution|resolution]] 1.98Å' scene=''> | <StructureSection load='3vay' size='340' side='right' caption='[[3vay]], [[Resolution|resolution]] 1.98Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3vay]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[3vay]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Psesm Psesm]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3VAY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3VAY FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=IOD:IODIDE+ION'>IOD</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PSPTO_0221 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=223283 | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PSPTO_0221 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=223283 PSESM])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3vay FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vay OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3vay RCSB], [http://www.ebi.ac.uk/pdbsum/3vay PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3vay FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vay OCA], [http://pdbe.org/3vay PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3vay RCSB], [http://www.ebi.ac.uk/pdbsum/3vay PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3vay ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 3vay" style="background-color:#fffaf0;"></div> | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Psesm]] | ||
[[Category: Chang, W]] | [[Category: Chang, W]] | ||
[[Category: Hou, Z]] | [[Category: Hou, Z]] | ||
Revision as of 15:50, 4 August 2016
Crystal structure of 2-Haloacid Dehalogenase from Pseudomonas syringae pv. Tomato DC3000Crystal structure of 2-Haloacid Dehalogenase from Pseudomonas syringae pv. Tomato DC3000
Structural highlights
Publication Abstract from PubMed2-Haloacid dehalogenases (2-HADs) catalyse the hydrolytic dehalogenation of 2-haloalkanoic acids, cleaving the carbon-halide bond at the C(alpha)-atom position and releasing a halogen atom. These enzymes are of interest for their potential use in bioremediation and in the synthesis of industrial chemicals. Here, the crystal structure of 2-HAD from Pseudomonas syringae pv. tomato DC3000 (ps-2-HAD) at 1.98 A resolution solved using the single-wavelength anomalous dispersion method is reported. The ps-2-HAD molecule consists of two structurally distinct domains: the core domain and the subdomain. Enzymatic activity analysis of ps-2-HAD revealed its capacity to catalyse the dehalogenation of both L- and D-substrates; however, the structure of ps-2-HAD is completely different from that of DehI, which is the only DL-2-HAD enzyme that has been structurally characterized, but shows similar overall folding to L-HADs. Single mutations of four amino-acid residues at the putative active site showed that they are related to its enzymatic activity, yet three of them are nonconserved among HADs. These observations imply that ps-2-HAD has a novel active site and a unique catalytic behaviour compared with other HADs. This study provides a structural basis and biochemical evidence for further elucidation of the catalytic mechanism of 2-HAD. Structure of 2-haloacid dehalogenase from Pseudomonas syringae pv. tomato DC3000.,Hou Z, Zhang H, Li M, Chang W Acta Crystallogr D Biol Crystallogr. 2013 Jun;69(Pt 6):1108-14. doi:, 10.1107/S0907444913006021. Epub 2013 May 15. PMID:23695255[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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