3bns

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==Crystal Structure of the Homo sapiens Mitochondrial Ribosomal Decoding Site (A1555G mutant, Br-derivative)==
==Crystal Structure of the Homo sapiens Mitochondrial Ribosomal Decoding Site (A1555G mutant, Br-derivative)==
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<StructureSection load='3bns' size='340' side='right' caption='[[3bns]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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<StructureSection load='3bns' size='340' side='right'caption='[[3bns]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3bns]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BNS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3BNS FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3bns]] is a 4 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BNS OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3BNS FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=K:POTASSIUM+ION'>K</scene><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><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=5BU:5-BROMO-URIDINE-5-MONOPHOSPHATE'>5BU</scene></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=5BU:5-BROMO-URIDINE-5-MONOPHOSPHATE'>5BU</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3bnl|3bnl]], [[3bnn|3bnn]], [[3bno|3bno]], [[3bnp|3bnp]], [[3bnq|3bnq]], [[3bnr|3bnr]], [[3bnt|3bnt]]</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=3bns FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bns OCA], [https://pdbe.org/3bns PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3bns RCSB], [https://www.ebi.ac.uk/pdbsum/3bns PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3bns ProSAT]</span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3bns FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3bns OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3bns RCSB], [http://www.ebi.ac.uk/pdbsum/3bns PDBsum]</span></td></tr>
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</table>
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<table>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The A site of the small ribosomal subunit participates in the fidelity of decoding by switching between two states, a resting 'off' state and an active decoding 'on' state. Eight crystal structures of RNA duplexes containing two minimal decoding A sites of the Homo sapiens mitochondrial wild-type, the A1555G mutant or bacteria have been solved. The resting 'off' state of the mitochondrial wild-type A site is surprisingly different from that of the bacterial A site. The mitochondrial A1555G mutant has two types of the 'off' states; one is similar to the mitochondrial wild-type 'off' state and the other is similar to the bacterial 'off' state. Our present results indicate that the dynamics of the A site in bacteria and mitochondria are different, a property probably related to the small number of tRNAs used for decoding in mitochondria. Based on these structures, we propose a hypothesis for the molecular mechanism of non-syndromic hearing loss due to the mitochondrial A1555G mutation.
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The bacterial and mitochondrial ribosomal A-site molecular switches possess different conformational substates.,Kondo J, Westhof E Nucleic Acids Res. 2008 May;36(8):2654-66. Epub 2008 Mar 16. PMID:18346970<ref>PMID:18346970</ref>
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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</div>
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== References ==
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<references/>
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Kondo, J.]]
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[[Category: Large Structures]]
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[[Category: Westhof, E.]]
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[[Category: Kondo J]]
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[[Category: Decoding site]]
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[[Category: Westhof E]]
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[[Category: Ribosome]]
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[[Category: Rna]]
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Current revision

Crystal Structure of the Homo sapiens Mitochondrial Ribosomal Decoding Site (A1555G mutant, Br-derivative)

PDB ID 3bns

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