2i2t: Difference between revisions

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{{Large structure}}
==Crystal Structure of Ribosome with messenger RNA and the Anticodon stem-loop of P-site tRNA. This file contains the 50s subunit of one 70s ribosome. The entire crystal structure contains two 70s ribosomes and is described in remark 400.==
{{STRUCTURE_2i2t|  PDB=2i2t  |  SCENE=  }}
<StructureSection load='2i2t' size='340' side='right' caption='[[2i2t]], [[Resolution|resolution]] 3.22&Aring;' scene=''>
===Crystal Structure of Ribosome with messenger RNA and the Anticodon stem-loop of P-site tRNA. This file contains the 50s subunit of one 70s ribosome. The entire crystal structure contains two 70s ribosomes and is described in remark 400.===
== Structural highlights ==
{{ABSTRACT_PUBMED_17038497}}
<table><tr><td colspan='2'>[[2i2t]] is a 30 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I2T OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2I2T 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=ZN:ZINC+ION'>ZN</scene><br>
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2i2p|2i2p]], [[2i2u|2i2u]], [[2i2v|2i2v]]</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=2i2t FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i2t OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2i2t RCSB], [http://www.ebi.ac.uk/pdbsum/2i2t 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/i2/2i2t_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 ==
Protein synthesis requires the accurate positioning of mRNA and tRNA in the peptidyl-tRNA site of the ribosome. Here we describe x-ray crystal structures of the intact bacterial ribosome from Escherichia coli in a complex with mRNA and the anticodon stem-loop of P-site tRNA. At 3.5-A resolution, these structures reveal rearrangements in the intact ribosome that clamp P-site tRNA and mRNA on the small ribosomal subunit. Binding of the anticodon stem-loop of P-site tRNA to the ribosome is sufficient to lock the head of the small ribosomal subunit in a single conformation, thereby preventing movement of mRNA and tRNA before mRNA decoding.


==About this Structure==
Structural basis for mRNA and tRNA positioning on the ribosome.,Berk V, Zhang W, Pai RD, Cate JH Proc Natl Acad Sci U S A. 2006 Oct 24;103(43):15830-4. Epub 2006 Oct 12. PMID:17038497<ref>PMID:17038497</ref>
[[2i2t]] is a 30 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I2T OCA].
 
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>


==See Also==
==See Also==
*[[Ribosomal protein L11|Ribosomal protein L11]]
*[[Ribosome 3D structures|Ribosome 3D structures]]
*[[Ribosomal protein L13|Ribosomal protein L13]]
== References ==
*[[Ribosomal protein L14|Ribosomal protein L14]]
<references/>
*[[Ribosomal protein L15|Ribosomal protein L15]]
__TOC__
*[[Ribosomal protein L16|Ribosomal protein L16]]
</StructureSection>
*[[Ribosomal protein L17|Ribosomal protein L17]]
*[[Ribosomal protein L18|Ribosomal protein L18]]
*[[Ribosomal protein L19|Ribosomal protein L19]]
*[[Ribosomal protein L2|Ribosomal protein L2]]
*[[Ribosomal protein L20|Ribosomal protein L20]]
*[[Ribosomal protein L21|Ribosomal protein L21]]
*[[Ribosomal protein L22|Ribosomal protein L22]]
*[[Ribosomal protein L23|Ribosomal protein L23]]
*[[Ribosomal protein L24|Ribosomal protein L24]]
*[[Ribosomal protein L25|Ribosomal protein L25]]
*[[Ribosomal protein L27|Ribosomal protein L27]]
*[[Ribosomal protein L28|Ribosomal protein L28]]
*[[Ribosomal protein L29|Ribosomal protein L29]]
*[[Ribosomal protein L3|Ribosomal protein L3]]
*[[Ribosomal protein L30|Ribosomal protein L30]]
*[[Ribosomal protein L32|Ribosomal protein L32]]
*[[Ribosomal protein L33|Ribosomal protein L33]]
*[[Ribosomal protein L34|Ribosomal protein L34]]
*[[Ribosomal protein L35|Ribosomal protein L35]]
*[[Ribosomal protein L36|Ribosomal protein L36]]
*[[Ribosomal protein L4|Ribosomal protein L4]]
*[[Ribosomal protein L5|Ribosomal protein L5]]
*[[Ribosomal protein L6|Ribosomal protein L6]]
*[[Ribosomal protein L9|Ribosomal protein L9]]
*[[Ribosome|Ribosome]]
 
==Reference==
<ref group="xtra">PMID:017038497</ref><references group="xtra"/>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Berk, V.]]
[[Category: Berk, V.]]
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