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3hxm

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{{Seed}}
 
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[[Image:3hxm.jpg|left|200px]]
 
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==Structure of an argonaute complexed with guide DNA and target RNA duplex containing two mismatches.==
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The line below this paragraph, containing "STRUCTURE_3hxm", creates the "Structure Box" on the page.
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<StructureSection load='3hxm' size='340' side='right'caption='[[3hxm]], [[Resolution|resolution]] 3.10&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'>[[3hxm]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Thermus_thermophilus_HB27 Thermus thermophilus HB27]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HXM OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3HXM 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]] 3.1&#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=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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{{STRUCTURE_3hxm| PDB=3hxm | 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=3hxm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3hxm OCA], [https://pdbe.org/3hxm PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3hxm RCSB], [https://www.ebi.ac.uk/pdbsum/3hxm PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3hxm ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q746M7_THET2 Q746M7_THET2]
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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/hx/3hxm_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=3hxm 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 slicer activity of the RNA-induced silencing complex resides within its Argonaute (Ago) component, in which the PIWI domain provides the catalytic residues governing guide-strand mediated site-specific cleavage of target RNA. Here we report on structures of ternary complexes of Thermus thermophilus Ago catalytic mutants with 5'-phosphorylated 21-nucleotide guide DNA and complementary target RNAs of 12, 15 and 19 nucleotides in length, which define the molecular basis for Mg(2+)-facilitated site-specific cleavage of the target. We observe pivot-like domain movements within the Ago scaffold on proceeding from nucleation to propagation steps of guide-target duplex formation, with duplex zippering beyond one turn of the helix requiring the release of the 3'-end of the guide from the PAZ pocket. Cleavage assays on targets of various lengths supported this model, and sugar-phosphate-backbone-modified target strands showed the importance of structural and catalytic divalent metal ions observed in the crystal structures.
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===Structure of an argonaute complexed with guide DNA and target RNA duplex containing two mismatches.===
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Nucleation, propagation and cleavage of target RNAs in Ago silencing complexes.,Wang Y, Juranek S, Li H, Sheng G, Wardle GS, Tuschl T, Patel DJ Nature. 2009 Oct 8;461(7265):754-61. PMID:19812667<ref>PMID:19812667</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 3hxm" style="background-color:#fffaf0;"></div>
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==About this Structure==
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==See Also==
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3HXM is a 3 chains structure of sequences from [http://en.wikipedia.org/wiki/Thermus_thermophilus_hb27 Thermus thermophilus hb27]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3HXM OCA].
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*[[Argonaute 3D structures|Argonaute 3D structures]]
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[[Category: Thermus thermophilus hb27]]
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== References ==
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[[Category: Li, H.]]
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<references/>
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[[Category: Patel, D J.]]
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__TOC__
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[[Category: Sheng, G.]]
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</StructureSection>
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[[Category: Wang, Y.]]
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[[Category: Large Structures]]
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[[Category: Argonaute]]
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[[Category: Thermus thermophilus HB27]]
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[[Category: Nucleic acid binding protein/dna/rna complex]]
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[[Category: Li H]]
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[[Category: Plasmid]]
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[[Category: Patel DJ]]
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[[Category: Protein-dna-rna complex]]
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[[Category: Sheng G]]
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[[Category: Wang Y]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Oct 7 14:12:10 2009''
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Current revision

Structure of an argonaute complexed with guide DNA and target RNA duplex containing two mismatches.

PDB ID 3hxm

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