2oqu

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[[Image:2oqu.jpg|left|200px]]
 
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{{Structure
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==High Pressure Cryocooling of Capillary Sample Cryoprotection and Diffraction Phasing at Long Wavelengths==
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|PDB= 2oqu |SIZE=350|CAPTION= <scene name='initialview01'>2oqu</scene>, resolution 1.80&Aring;
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<StructureSection load='2oqu' size='340' side='right'caption='[[2oqu]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=XE:XENON'>XE</scene>
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<table><tr><td colspan='2'>[[2oqu]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OQU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OQU FirstGlance]. <br>
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|ACTIVITY= [http://en.wikipedia.org/wiki/Pancreatic_elastase Pancreatic elastase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.36 3.4.21.36]
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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]] 1.8&#8491;</td></tr>
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|GENE=
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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>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=XE:XENON'>XE</scene></td></tr>
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}}
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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=2oqu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oqu OCA], [https://pdbe.org/2oqu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2oqu RCSB], [https://www.ebi.ac.uk/pdbsum/2oqu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2oqu ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CELA1_PIG CELA1_PIG] Acts upon elastin.
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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/oq/2oqu_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/main_output.php?pdb_ID=2oqu 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 cryocooling is usually employed to reduce radiation damage during X-ray crystallography. Recently, a high-pressure cryocooling method has been developed which results in excellent diffraction-quality crystals without the use of penetrative cryoprotectants. Three new developments of the method are presented here: (i) Xe-He high-pressure cryocooling for Xe SAD phasing, (ii) native sulfur SAD phasing and (iii) successful cryopreservation of crystals in thick-walled capillaries without additional cryoprotectants other than the native mother liquor. These developments may be useful for structural solution of proteins without the need for selenomethionine incorporation and for high-throughput protein crystallography.
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'''High Pressure Cryocooling of Capillary Sample Cryoprotection and Diffraction Phasing at Long Wavelengths'''
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High-pressure cryocooling for capillary sample cryoprotection and diffraction phasing at long wavelengths.,Kim CU, Hao Q, Gruner SM Acta Crystallogr D Biol Crystallogr. 2007 May;63(Pt 5):653-9. Epub 2007, Apr 21. PMID:17452791<ref>PMID:17452791</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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<div class="pdbe-citations 2oqu" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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Crystal cryocooling is usually employed to reduce radiation damage during X-ray crystallography. Recently, a high-pressure cryocooling method has been developed which results in excellent diffraction-quality crystals without the use of penetrative cryoprotectants. Three new developments of the method are presented here: (i) Xe-He high-pressure cryocooling for Xe SAD phasing, (ii) native sulfur SAD phasing and (iii) successful cryopreservation of crystals in thick-walled capillaries without additional cryoprotectants other than the native mother liquor. These developments may be useful for structural solution of proteins without the need for selenomethionine incorporation and for high-throughput protein crystallography.
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*[[Elastase 3D structures|Elastase 3D structures]]
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== References ==
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==About this Structure==
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<references/>
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2OQU is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OQU OCA].
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__TOC__
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</StructureSection>
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==Reference==
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[[Category: Large Structures]]
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High-pressure cryocooling for capillary sample cryoprotection and diffraction phasing at long wavelengths., Kim CU, Hao Q, Gruner SM, Acta Crystallogr D Biol Crystallogr. 2007 May;63(Pt 5):653-9. Epub 2007, Apr 21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17452791 17452791]
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[[Category: Pancreatic elastase]]
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[[Category: Single protein]]
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[[Category: Sus scrofa]]
[[Category: Sus scrofa]]
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[[Category: Gruner, S M.]]
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[[Category: Gruner SM]]
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[[Category: Hao, Q.]]
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[[Category: Hao Q]]
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[[Category: Kim, C U.]]
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[[Category: Kim CU]]
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[[Category: CA]]
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[[Category: SO4]]
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[[Category: XE]]
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[[Category: high pressure cryocooling]]
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[[Category: sad phasing]]
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[[Category: xenon]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 18:03:21 2008''
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Current revision

High Pressure Cryocooling of Capillary Sample Cryoprotection and Diffraction Phasing at Long Wavelengths

PDB ID 2oqu

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