1bsr

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[[Image:1bsr.png|left|200px]]
 
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{{STRUCTURE_1bsr| PDB=1bsr | SCENE= }}
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==BOVINE SEMINAL RIBONUCLEASE STRUCTURE AT 1.9 ANGSTROMS RESOLUTION==
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<StructureSection load='1bsr' size='340' side='right'caption='[[1bsr]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1bsr]] is a 2 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=1BSR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1BSR FirstGlance]. <br>
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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]] 1.9&#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=SO4:SULFATE+ION'>SO4</scene></td></tr>
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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=1bsr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1bsr OCA], [https://pdbe.org/1bsr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1bsr RCSB], [https://www.ebi.ac.uk/pdbsum/1bsr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1bsr ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RNS_BOVIN RNS_BOVIN] This enzyme hydrolyzes both single- and double-stranded RNA.
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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/bs/1bsr_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=1bsr 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 structure of bovine seminal ribonuclease, a homodimeric enzyme closely related to pancreatic ribonuclease, has been refined at a nominal resolution of 1.9 A employing data collected on an electronic area detector. The final model consists of two chains containing 1990 non-H atoms, seven sulfate anions and 113 water molecules per asymmetric unit. The unit-cell parameters are a = 36.5 (1), b = 66.7 (1) and c = 107.5 (2) A, space group P22(1)2(1). The R factor is 0.177 for 16 492 reflections in the resolution range 6.0-1.9 A and the deviations from ideal values of bond lengths and bond angles are 0.020 A and 3.7 degrees, respectively. The molecule is formed by two pancreatic like chains, which have their N-terminal segments interchanged so that each active site is formed by residues from both subunits. The two chains are related by a non-crystallographic twofold symmetry and are covalently linked by two consecutive disulfide bridges, which form an unusual sixteen-membered ring across the dimer interface. The deviations from the molecular symmetry, the hydration shell and the sulfate-binding sites are also discussed in relation to the known structure of the pancreatic enzyme.
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===BOVINE SEMINAL RIBONUCLEASE STRUCTURE AT 1.9 ANGSTROMS RESOLUTION===
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Bovine seminal ribonuclease: structure at 1.9 A resolution.,Mazzarella L, Capasso S, Demasi D, Di Lorenzo G, Mattia CA, Zagari A Acta Crystallogr D Biol Crystallogr. 1993 Jul 1;49(Pt 4):389-402. PMID:15299514<ref>PMID:15299514</ref>
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{{ABSTRACT_PUBMED_15299514}}
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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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==About this Structure==
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<div class="pdbe-citations 1bsr" style="background-color:#fffaf0;"></div>
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[[1bsr]] is a 2 chain structure of [[Ribonuclease]] 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=1BSR OCA].
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==See Also==
==See Also==
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*[[Ribonuclease|Ribonuclease]]
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*[[Ribonuclease 3D structures|Ribonuclease 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:015299514</ref><ref group="xtra">PMID:009521722</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: Mazzarella, L.]]
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[[Category: Large Structures]]
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[[Category: Mazzarella L]]

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BOVINE SEMINAL RIBONUCLEASE STRUCTURE AT 1.9 ANGSTROMS RESOLUTION

PDB ID 1bsr

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