1kvw

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[[Image:1kvw.png|left|200px]]
 
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==CARBOXYLIC ESTER HYDROLASE, SINGLE MUTANT H48Q OF BOVINE PANCREATIC PLA2 ENZYME==
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The line below this paragraph, containing "STRUCTURE_1kvw", creates the "Structure Box" on the page.
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<StructureSection load='1kvw' size='340' side='right'caption='[[1kvw]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1kvw]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KVW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1KVW FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.95&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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{{STRUCTURE_1kvw| PDB=1kvw | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1kvw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1kvw OCA], [https://pdbe.org/1kvw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1kvw RCSB], [https://www.ebi.ac.uk/pdbsum/1kvw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1kvw ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PA21B_BOVIN PA21B_BOVIN] PA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides.
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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/kv/1kvw_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=1kvw 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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Crystal structures of the active-site mutants D99A and H48Q and the calcium-loop mutant D49E of bovine phospholipase A2 have been determined at around 1.9 A resolution. The D99A mutant is isomorphous to the orthorhombic recombinant enzyme, space group P212121. The H48Q and the calcium-loop mutant D49E are isomorphous to the trigonal recombinant enzyme, space group P3121. The two active-site mutants show no major structural perturbations. The structural water is absent in D99A and, therefore, the hydrogen-bonding scheme is changed. In H48Q, the catalytic water is present and hydrogen bonded to Gln48 N, but the second water found in native His48 is absent. In the calcium-loop mutant D49E, the two water molecules forming the pentagonal bipyramid around calcium are absent and only one O atom of the Glu49 carboxylate group is coordinated to calcium, resulting in only four ligands.
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===CARBOXYLIC ESTER HYDROLASE, SINGLE MUTANT H48Q OF BOVINE PANCREATIC PLA2 ENZYME===
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Structures of the catalytic site mutants D99A and H48Q and the calcium-loop mutant D49E of phospholipase A2.,Sekar K, Biswas R, Li Y, Tsai M, Sundaralingam M Acta Crystallogr D Biol Crystallogr. 1999 Feb;55(Pt 2):443-7. PMID:10089353<ref>PMID:10089353</ref>
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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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The line below this paragraph, {{ABSTRACT_PUBMED_10089353}}, adds the Publication Abstract to the page
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<div class="pdbe-citations 1kvw" style="background-color:#fffaf0;"></div>
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(as it appears on PubMed at http://www.pubmed.gov), where 10089353 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10089353}}
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==About this Structure==
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[[1kvw]] is a 1 chain structure of [[Phospholipase A2]] with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1KVW OCA].
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==See Also==
==See Also==
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*[[Phospholipase A2]]
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*[[Phospholipase A2 3D structures|Phospholipase A2 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:10089353</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
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[[Category: Sundaralingam, M.]]
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[[Category: Large Structures]]
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[[Category: Carboxylic ester hydrolase]]
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[[Category: Sundaralingam M]]
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[[Category: Enzyme]]
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[[Category: Hydrolase]]
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Current revision

CARBOXYLIC ESTER HYDROLASE, SINGLE MUTANT H48Q OF BOVINE PANCREATIC PLA2 ENZYME

PDB ID 1kvw

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