2oj3

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{{Seed}}
 
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[[Image:2oj3.png|left|200px]]
 
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==Hepatitis Delta Virus ribozyme precursor structure, with C75U mutation, bound to Tl+ and cobalt hexammine (Co(NH3)63+)==
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The line below this paragraph, containing "STRUCTURE_2oj3", creates the "Structure Box" on the page.
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<StructureSection load='2oj3' size='340' side='right'caption='[[2oj3]], [[Resolution|resolution]] 2.90&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'>[[2oj3]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OJ3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OJ3 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]] 2.9&#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=NCO:COBALT+HEXAMMINE(III)'>NCO</scene>, <scene name='pdbligand=TL:THALLIUM+(I)+ION'>TL</scene></td></tr>
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{{STRUCTURE_2oj3| PDB=2oj3 | 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=2oj3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2oj3 OCA], [https://pdbe.org/2oj3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2oj3 RCSB], [https://www.ebi.ac.uk/pdbsum/2oj3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2oj3 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SNRPA_HUMAN SNRPA_HUMAN] Binds stem loop II of U1 snRNA. It is the first snRNP to interact with pre-mRNA. This interaction is required for the subsequent binding of U2 snRNP and the U4/U6/U5 tri-snRNP. In a snRNP-free form (SF-A) may be involved in coupled pre-mRNA splicing and polyadenylation process. Binds preferentially to the 5'-UGCAC-3' motif in vitro.<ref>PMID:9848648</ref>
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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/oj/2oj3_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=2oj3 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 hepatitis delta virus (HDV) ribozyme catalyzes viral RNA self-cleavage through general acid-base chemistry in which an active-site cytidine and at least one metal ion are involved. Monovalent metal ions support slow catalysis and were proposed to substitute for structural, but not catalytic, divalent metal ions in the RNA. To investigate the role of monovalent cations in ribozyme structure and function, we determined the crystal structure of the precursor HDV ribozyme in the presence of thallium ions (Tl(+)). Two Tl(+) ions can occupy a previously observed divalent metal ion hexahydrate-binding site located near the scissile phosphate, but are easily competed away by cobalt hexammine, a magnesium hexahydrate mimic and potent reaction inhibitor. Intriguingly, a third Tl(+) ion forms direct inner-sphere contacts with the ribose 2'-OH nucleophile and the pro-S(p) scissile phosphate oxygen. We discuss possible structural and catalytic implications of monovalent cation binding for the HDV ribozyme mechanism.
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===Hepatitis Delta Virus ribozyme precursor structure, with C75U mutation, bound to Tl+ and cobalt hexammine (Co(NH3)63+)===
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Structural roles of monovalent cations in the HDV ribozyme.,Ke A, Ding F, Batchelor JD, Doudna JA Structure. 2007 Mar;15(3):281-7. PMID:17355864<ref>PMID:17355864</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 2oj3" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_17355864}}, adds the Publication Abstract to the page
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*[[Nucleoprotein 3D structures|Nucleoprotein 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 17355864 is the PubMed ID number.
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*[[Ribozyme 3D structures|Ribozyme 3D structures]]
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== References ==
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{{ABSTRACT_PUBMED_17355864}}
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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2OJ3 is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OJ3 OCA].
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==Reference==
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<ref group="xtra">PMID:17355864</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Batchelor, J D.]]
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[[Category: Large Structures]]
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[[Category: Ding, F.]]
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[[Category: Batchelor JD]]
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[[Category: Doudna, J A.]]
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[[Category: Ding F]]
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[[Category: Ke, A.]]
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[[Category: Doudna JA]]
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[[Category: Tl+ and cobalt hexammine compete for binding sites.]]
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[[Category: Ke A]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Feb 18 05:47:53 2009''
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Current revision

Hepatitis Delta Virus ribozyme precursor structure, with C75U mutation, bound to Tl+ and cobalt hexammine (Co(NH3)63+)

PDB ID 2oj3

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