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2sar

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[[Image:2sar.jpg|left|200px]]
 
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==DETERMINATION AND RESTRAINED LEAST-SQUARES REFINEMENT OF THE CRYSTAL STRUCTURES OF RIBONUCLEASE SA AND ITS COMPLEX WITH 3'-GUANYLIC ACID AT 1.8 ANGSTROMS RESOLUTION==
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The line below this paragraph, containing "STRUCTURE_2sar", creates the "Structure Box" on the page.
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<StructureSection load='2sar' size='340' side='right'caption='[[2sar]], [[Resolution|resolution]] 1.80&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'>[[2sar]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Atcc_10762 Atcc 10762]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2SAR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2SAR FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3GP:GUANOSINE-3-MONOPHOSPHATE'>3GP</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Ribonuclease_T(1) Ribonuclease T(1)], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.27.3 3.1.27.3] </span></td></tr>
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{{STRUCTURE_2sar| PDB=2sar | 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=2sar FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2sar OCA], [https://pdbe.org/2sar PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2sar RCSB], [https://www.ebi.ac.uk/pdbsum/2sar PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2sar ProSAT]</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/sa/2sar_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=2sar 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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The crystal structures of ribonuclease from Streptomyces aureofaciens (RNase Sa) and its complex with 3'-guanylic acid (guanosine 3'-monophosphate, 3'-GMP) have been determined by the method of isomorphous replacement. The atomic parameters have been refined by restrained least-squares minimization using data in the resolution range 10.0-1.8 A. All protein atoms and more than 230 water atoms in the two crystal structures have been refined to crystallographic R factors of 0.172 and 0.175 respectively. The estimated r.m.s. error in the atomic positions ranges from 0.2 A for well-defined atoms to about 0.5 A for more poorly defined atoms. There are two enzyme molecules in the asymmetric unit, built independently, and referred to as molecules A and B. The value of the average B factor for protein atoms in both structures is about 19 A2 and for water molecules about 35 A2. Electron density for the substrate analogue 3'-GMP was found only at the active site of molecule A. The density was very clear and the positions of all 3'-GMP atoms were refined with precision comparable to that of the protein.
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'''DETERMINATION AND RESTRAINED LEAST-SQUARES REFINEMENT OF THE CRYSTAL STRUCTURES OF RIBONUCLEASE SA AND ITS COMPLEX WITH 3'-GUANYLIC ACID AT 1.8 ANGSTROMS RESOLUTION'''
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Determination and restrained least-squares refinement of the structures of ribonuclease Sa and its complex with 3'-guanylic acid at 1.8 A resolution.,Sevcik J, Dodson EJ, Dodson GG Acta Crystallogr B. 1991 Apr 1;47 ( Pt 2):240-53. PMID:1654932<ref>PMID:1654932</ref>
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==Overview==
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The crystal structures of ribonuclease from Streptomyces aureofaciens (RNase Sa) and its complex with 3'-guanylic acid (guanosine 3'-monophosphate, 3'-GMP) have been determined by the method of isomorphous replacement. The atomic parameters have been refined by restrained least-squares minimization using data in the resolution range 10.0-1.8 A. All protein atoms and more than 230 water atoms in the two crystal structures have been refined to crystallographic R factors of 0.172 and 0.175 respectively. The estimated r.m.s. error in the atomic positions ranges from 0.2 A for well-defined atoms to about 0.5 A for more poorly defined atoms. There are two enzyme molecules in the asymmetric unit, built independently, and referred to as molecules A and B. The value of the average B factor for protein atoms in both structures is about 19 A2 and for water molecules about 35 A2. Electron density for the substrate analogue 3'-GMP was found only at the active site of molecule A. The density was very clear and the positions of all 3'-GMP atoms were refined with precision comparable to that of the protein.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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2SAR is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Streptomyces_aureofaciens Streptomyces aureofaciens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2SAR OCA].
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</div>
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<div class="pdbe-citations 2sar" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Determination and restrained least-squares refinement of the structures of ribonuclease Sa and its complex with 3'-guanylic acid at 1.8 A resolution., Sevcik J, Dodson EJ, Dodson GG, Acta Crystallogr B. 1991 Apr 1;47 ( Pt 2):240-53. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/1654932 1654932]
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*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
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[[Category: Single protein]]
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== References ==
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[[Category: Streptomyces aureofaciens]]
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<references/>
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[[Category: Dodson, E J.]]
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__TOC__
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[[Category: Dodson, G G.]]
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</StructureSection>
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[[Category: Sevcik, J.]]
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[[Category: Atcc 10762]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 17:17:17 2008''
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[[Category: Large Structures]]
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[[Category: Dodson, E J]]
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[[Category: Dodson, G G]]
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[[Category: Sevcik, J]]

Current revision

DETERMINATION AND RESTRAINED LEAST-SQUARES REFINEMENT OF THE CRYSTAL STRUCTURES OF RIBONUCLEASE SA AND ITS COMPLEX WITH 3'-GUANYLIC ACID AT 1.8 ANGSTROMS RESOLUTION

PDB ID 2sar

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