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1n32

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[[Image:1n32.png|left|200px]]
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==Structure of the Thermus thermophilus 30S ribosomal subunit bound to codon and near-cognate transfer RNA anticodon stem-loop mismatched at the first codon position at the a site with paromomycin==
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<StructureSection load='1n32' size='340' side='right' caption='[[1n32]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1n32]] is a 23 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N32 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1N32 FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PAR:PAROMOMYCIN'>PAR</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1j5e|1j5e]], [[1fjg|1fjg]], [[1ibl|1ibl]], [[1ibk|1ibk]], [[1ibm|1ibm]], [[1n33|1n33]], [[1n34|1n34]], [[1n36|1n36]]</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=1n32 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n32 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1n32 RCSB], [http://www.ebi.ac.uk/pdbsum/1n32 PDBsum]</span></td></tr>
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<table>
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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/n3/1n32_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/chain_selection.php?pdb_ID=2ata 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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A structural and mechanistic explanation for the selection of tRNAs by the ribosome has been elusive. Here, we report crystal structures of the 30S ribosomal subunit with codon and near-cognate tRNA anticodon stem loops bound at the decoding center and compare affinities of equivalent complexes in solution. In ribosomal interactions with near-cognate tRNA, deviation from Watson-Crick geometry results in uncompensated desolvation of hydrogen-bonding partners at the codon-anticodon minor groove. As a result, the transition to a closed form of the 30S induced by cognate tRNA is unfavorable for near-cognate tRNA unless paromomycin induces part of the rearrangement. We conclude that stabilization of a closed 30S conformation is required for tRNA selection, and thereby structurally rationalize much previous data on translational fidelity.
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{{STRUCTURE_1n32| PDB=1n32 | SCENE= }}
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Selection of tRNA by the ribosome requires a transition from an open to a closed form.,Ogle JM, Murphy FV, Tarry MJ, Ramakrishnan V Cell. 2002 Nov 27;111(5):721-32. PMID:12464183<ref>PMID:12464183</ref>
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===Structure of the Thermus thermophilus 30S ribosomal subunit bound to codon and near-cognate transfer RNA anticodon stem-loop mismatched at the first codon position at the a site with paromomycin===
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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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{{ABSTRACT_PUBMED_12464183}}
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==About this Structure==
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[[1n32]] is a 23 chain structure with sequence from [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N32 OCA].
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==See Also==
==See Also==
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*[[Ribosomal protein S10|Ribosomal protein S10]]
 
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*[[Ribosomal protein S11|Ribosomal protein S11]]
 
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*[[Ribosomal protein S12|Ribosomal protein S12]]
 
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*[[Ribosomal protein S13|Ribosomal protein S13]]
 
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*[[Ribosomal protein S14|Ribosomal protein S14]]
 
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*[[Ribosomal protein S15|Ribosomal protein S15]]
 
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*[[Ribosomal protein S16|Ribosomal protein S16]]
 
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*[[Ribosomal protein S17|Ribosomal protein S17]]
 
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*[[Ribosomal protein S18|Ribosomal protein S18]]
 
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*[[Ribosomal protein S19|Ribosomal protein S19]]
 
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*[[Ribosomal protein S2|Ribosomal protein S2]]
 
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*[[Ribosomal protein S20|Ribosomal protein S20]]
 
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*[[Ribosomal protein S3|Ribosomal protein S3]]
 
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*[[Ribosomal protein S4|Ribosomal protein S4]]
 
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*[[Ribosomal protein S5|Ribosomal protein S5]]
 
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*[[Ribosomal protein S6|Ribosomal protein S6]]
 
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*[[Ribosomal protein S7|Ribosomal protein S7]]
 
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*[[Ribosomal protein S8|Ribosomal protein S8]]
 
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*[[Ribosomal protein S9|Ribosomal protein S9]]
 
*[[Ribosomal protein THX|Ribosomal protein THX]]
*[[Ribosomal protein THX|Ribosomal protein THX]]
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*[[Ribosome|Ribosome]]
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*[[Ribosome 3D structures|Ribosome 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:012464183</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Thermus thermophilus]]
[[Category: Thermus thermophilus]]
[[Category: IV, F V.Murphy.]]
[[Category: IV, F V.Murphy.]]

Revision as of 14:43, 28 September 2014

Structure of the Thermus thermophilus 30S ribosomal subunit bound to codon and near-cognate transfer RNA anticodon stem-loop mismatched at the first codon position at the a site with paromomycin

1n32, resolution 3.00Å

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