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1gsp

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(New page: 200px<br /> <applet load="1gsp" size="450" color="white" frame="true" align="right" spinBox="true" caption="1gsp, resolution 2.20&Aring;" /> '''RIBONUCLEASE T1 COM...)
Current revision (06:12, 9 August 2023) (edit) (undo)
 
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[[Image:1gsp.gif|left|200px]]<br />
 
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<applet load="1gsp" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1gsp, resolution 2.20&Aring;" />
 
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'''RIBONUCLEASE T1 COMPLEXED WITH 2',3'-CGPS, 1 DAY'''<br />
 
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==Overview==
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==RIBONUCLEASE T1 COMPLEXED WITH 2',3'-CGPS, 1 DAY==
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Here we present a time-resolved crystallographic analysis of the, hydrolysis of exo (Sp) guanosine 2',3'-cyclophosphorothioate by RNase T1., The use of a slow substrate and fast crystallization methods made it, possible to perform the study with conventional data-collection, techniques. The results support the idea that the hydrolysis reaction, proceeds through a mechanism that is the inverse of the, transesterification reaction. In addition, the structures provide an, explanation for the differential behavior of RNase T1 towards exo- and, endo-cyclic thiophosphates.
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<StructureSection load='1gsp' size='340' side='right'caption='[[1gsp]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1gsp]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Aspergillus_oryzae Aspergillus oryzae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GSP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GSP 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]] 2.2&#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>, <scene name='pdbligand=SGP:GUANOSINE-2,3-CYCLOPHOSPHOROTHIOATE'>SGP</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=1gsp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gsp OCA], [https://pdbe.org/1gsp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gsp RCSB], [https://www.ebi.ac.uk/pdbsum/1gsp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gsp ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RNT1_ASPOR RNT1_ASPOR]
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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/gs/1gsp_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=1gsp 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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Here we present a time-resolved crystallographic analysis of the hydrolysis of exo (Sp) guanosine 2',3'-cyclophosphorothioate by RNase T1. The use of a slow substrate and fast crystallization methods made it possible to perform the study with conventional data-collection techniques. The results support the idea that the hydrolysis reaction proceeds through a mechanism that is the inverse of the transesterification reaction. In addition, the structures provide an explanation for the differential behavior of RNase T1 towards exo- and endo-cyclic thiophosphates.
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==About this Structure==
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Hydrolysis of a slow cyclic thiophosphate substrate of RNase T1 analyzed by time-resolved crystallography.,Zegers I, Loris R, Dehollander G, Fattah Haikal A, Poortmans F, Steyaert J, Wyns L Nat Struct Biol. 1998 Apr;5(4):280-3. PMID:9546218<ref>PMID:9546218</ref>
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1GSP is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Aspergillus_oryzae Aspergillus oryzae]] with CA and SGP as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/ ]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.27.3 3.1.27.3]]. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1GSP OCA]].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Hydrolysis of a slow cyclic thiophosphate substrate of RNase T1 analyzed by time-resolved crystallography., Zegers I, Loris R, Dehollander G, Fattah Haikal A, Poortmans F, Steyaert J, Wyns L, Nat Struct Biol. 1998 Apr;5(4):280-3. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=9546218 9546218]
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</div>
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[[Category: Aspergillus oryzae]]
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<div class="pdbe-citations 1gsp" style="background-color:#fffaf0;"></div>
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[[Category: Single protein]]
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[[Category: Wyns, L.]]
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[[Category: Zegers, I.]]
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[[Category: CA]]
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[[Category: SGP]]
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[[Category: endoribonuclease]]
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[[Category: hydrolase]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Oct 29 19:50:36 2007''
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==See Also==
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*[[Ribonuclease 3D structures|Ribonuclease 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Aspergillus oryzae]]
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[[Category: Large Structures]]
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[[Category: Wyns L]]
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[[Category: Zegers I]]

Current revision

RIBONUCLEASE T1 COMPLEXED WITH 2',3'-CGPS, 1 DAY

PDB ID 1gsp

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