1cvm

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[[Image:1cvm.png|left|200px]]
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==CADMIUM INHIBITED CRYSTAL STRUCTURE OF PHYTASE FROM BACILLUS AMYLOLIQUEFACIENS==
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<StructureSection load='1cvm' size='340' side='right' caption='[[1cvm]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1cvm]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CVM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1CVM FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=CD:CADMIUM+ION'>CD</scene><br>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1poo|1poo]]</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/3-phytase 3-phytase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.8 3.1.3.8] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1cvm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1cvm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1cvm RCSB], [http://www.ebi.ac.uk/pdbsum/1cvm PDBsum]</span></td></tr>
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<table>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/cv/1cvm_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Phytases hydrolyze phytic acid to less phosphorylated myo-inositol derivatives and inorganic phosphate. A thermostable phytase is of great value in applications for improving phosphate and metal ion availability in animal feed, and thereby reducing phosphate pollution to the environment. Here, we report a new folding architecture of a six-bladed propeller for phosphatase activity revealed by the 2.1 A crystal structures of a novel, thermostable phytase determined in both the partially and fully Ca2+-loaded states. Binding of two calcium ions to high-affinity calcium binding sites results in a dramatic increase in thermostability (by as much as approximately 30 degrees C in melting temperature) by joining loop segments remote in the amino acid sequence. Binding of three additional calcium ions to low-affinity calcium binding sites at the top of the molecule turns on the catalytic activity of the enzyme by converting the highly negatively charged cleft into a favorable environment for the binding of phytate.
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{{STRUCTURE_1cvm| PDB=1cvm | SCENE= }}
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Crystal structures of a novel, thermostable phytase in partially and fully calcium-loaded states.,Ha NC, Oh BC, Shin S, Kim HJ, Oh TK, Kim YO, Choi KY, Oh BH Nat Struct Biol. 2000 Feb;7(2):147-53. PMID:10655618<ref>PMID:10655618</ref>
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===CADMIUM INHIBITED CRYSTAL STRUCTURE OF PHYTASE FROM BACILLUS AMYLOLIQUEFACIENS===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_10655618}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1cvm]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Bacillus_amyloliquefaciens Bacillus amyloliquefaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1CVM OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:010655618</ref><ref group="xtra">PMID:010089471</ref><references group="xtra"/>
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[[Category: 3-phytase]]
[[Category: 3-phytase]]
[[Category: Bacillus amyloliquefaciens]]
[[Category: Bacillus amyloliquefaciens]]

Revision as of 09:27, 27 August 2014

CADMIUM INHIBITED CRYSTAL STRUCTURE OF PHYTASE FROM BACILLUS AMYLOLIQUEFACIENS

1cvm, resolution 2.40Å

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