1n32: Difference between revisions

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-[[Image:1n32.png|left|200px]]
+==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==
+<StructureSection load='1n32' size='340' side='right' caption='[[1n32]], [[Resolution|resolution]] 3.00&Aring;' scene=''>
+== Structural highlights ==
+<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>
+</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>
+<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>
+<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>
+<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>
+<table>
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/n3/1n32_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </jmolCheckbox>
+</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].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+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.
-{{STRUCTURE_1n32|  PDB=1n32  |  SCENE=  }}
+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>
-===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===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_12464183}}
-==About this Structure==
-[[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].
 ==See Also==
-*[[Ribosomal protein S10|Ribosomal protein S10]]
-*[[Ribosomal protein S11|Ribosomal protein S11]]
-*[[Ribosomal protein S12|Ribosomal protein S12]]
-*[[Ribosomal protein S13|Ribosomal protein S13]]
-*[[Ribosomal protein S14|Ribosomal protein S14]]
-*[[Ribosomal protein S15|Ribosomal protein S15]]
-*[[Ribosomal protein S16|Ribosomal protein S16]]
-*[[Ribosomal protein S17|Ribosomal protein S17]]
-*[[Ribosomal protein S18|Ribosomal protein S18]]
-*[[Ribosomal protein S19|Ribosomal protein S19]]
-*[[Ribosomal protein S2|Ribosomal protein S2]]
-*[[Ribosomal protein S20|Ribosomal protein S20]]
-*[[Ribosomal protein S3|Ribosomal protein S3]]
-*[[Ribosomal protein S4|Ribosomal protein S4]]
-*[[Ribosomal protein S5|Ribosomal protein S5]]
-*[[Ribosomal protein S6|Ribosomal protein S6]]
-*[[Ribosomal protein S7|Ribosomal protein S7]]
-*[[Ribosomal protein S8|Ribosomal protein S8]]
-*[[Ribosomal protein S9|Ribosomal protein S9]]
 *[[Ribosomal protein THX|Ribosomal protein THX]]
-*[[Ribosome|Ribosome]]
+*[[Ribosome 3D structures|Ribosome 3D structures]]
+== References ==
-==Reference==
+<references/>
-<ref group="xtra">PMID:012464183</ref><references group="xtra"/>
+__TOC__
+</StructureSection>
 [[Category: Thermus thermophilus]]
 [[Category: IV, F V.Murphy.]]