2b9m: Difference between revisions
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[[Image: | ==30S ribosomal subunit, tRNAs, mRNA and release factor RF2 from a crystal structure of the whole ribosomal complex. This file contains the 30S ribosomal subunit, tRNAs, mRNA and release factor RF2 from a crystal structure of the whole ribosomal complex". The entire crystal structure contains one 70S ribosome, tRNAs, mRNA and release factor RF2 and is described in remark 400.== | ||
<StructureSection load='2b9m' size='340' side='right' caption='[[2b9m]], [[Resolution|resolution]] 6.76Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2b9m]] is a 25 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli], [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus] and [http://en.wikipedia.org/wiki/Thermus_thermophilus_hb8 Thermus thermophilus hb8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2B9M OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2B9M FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=YYG:4-(3-[5-O-PHOSPHONORIBOFURANOSYL]-4,6-DIMETHYL-8-OXO-4,8-DIHYDRO-3H-1,3,4,5,7A-PENTAAZA-S-INDACEN-YLAMINO-BUTYRIC+ACID+METHYL+ESTER'>YYG</scene></td></tr> | |||
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2b64|2b64]], [[2b66|2b66]], [[2b9n|2b9n]], [[2b9o|2b9o]], [[2b9p|2b9p]]</td></tr> | |||
<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">prfA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=300852 Thermus thermophilus HB8])</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=2b9m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2b9m OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2b9m RCSB], [http://www.ebi.ac.uk/pdbsum/2b9m 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/b9/2b9m_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 == | |||
During protein synthesis, translational release factors catalyze the release of the polypeptide chain when a stop codon on the mRNA reaches the A site of the ribosome. The detailed mechanism of this process is currently unknown. We present here the crystal structures of the ribosome from Thermus thermophilus with RF1 and RF2 bound to their cognate stop codons, at resolutions of 5.9 Angstrom and 6.7 Angstrom, respectively. The structures reveal details of interactions of the factors with the ribosome and mRNA, including elements previously implicated in decoding and peptide release. They also shed light on conformational changes both in the factors and in the ribosome during termination. Differences seen in the interaction of RF1 and RF2 with the L11 region of the ribosome allow us to rationalize previous biochemical data. Finally, this work demonstrates the feasibility of crystallizing ribosomes with bound factors at a defined state along the translational pathway. | |||
Crystal structures of the ribosome in complex with release factors RF1 and RF2 bound to a cognate stop codon.,Petry S, Brodersen DE, Murphy FV 4th, Dunham CM, Selmer M, Tarry MJ, Kelley AC, Ramakrishnan V Cell. 2005 Dec 29;123(7):1255-66. PMID:16377566<ref>PMID:16377566</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Ribosomal protein THX|Ribosomal protein THX]] | *[[Ribosomal protein THX|Ribosomal protein THX]] | ||
*[[Ribosome 3D structures|Ribosome 3D structures]] | |||
== | == References == | ||
< | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
[[Category: Thermus thermophilus]] | [[Category: Thermus thermophilus]] | ||
[[Category: Thermus thermophilus hb8]] | |||
[[Category: Brodersen, D E.]] | [[Category: Brodersen, D E.]] | ||
[[Category: Dunham, C M.]] | [[Category: Dunham, C M.]] | ||