2hgi
From Proteopedia
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| - | [[ | + | ==Crystal structure of the 70S Thermus thermophilus ribosome showing how the 16S 3'-end mimicks mRNA E and P codons. This entry 2HGI contains 30S ribosomal subunit. The 50S ribosomal subunit can be found in PDB entry 2HGJ.== |
| + | <StructureSection load='2hgi' size='340' side='right' caption='[[2hgi]], [[Resolution|resolution]] 5.00Å' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[2hgi]] is a 23 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [http://en.wikipedia.org/wiki/Thermus_thermophilus Thermus thermophilus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2HGI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2HGI FirstGlance]. <br> | ||
| + | </td></tr><tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2hgj|2hgj]]</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=2hgi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hgi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2hgi RCSB], [http://www.ebi.ac.uk/pdbsum/2hgi 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/hg/2hgi_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 == | ||
| + | Translation initiation is a major determinant of the overall expression level of a gene. The translation of functionally active protein requires the messenger RNA to be positioned on the ribosome such that the start/initiation codon will be read first and in the correct frame. Little is known about the molecular basis for the interaction of mRNA with the ribosome at different states of translation. Recent crystal structures of the ribosomal subunits, the empty 70S ribosome and the 70S ribosome containing functional ligands have provided information about the general organization of the ribosome and its functional centres. Here we compare the X-ray structures of eight ribosome complexes modelling the translation initiation, post-initiation and elongation states. In the initiation and post-initiation complexes, the presence of the Shine-Dalgarno (SD) duplex causes strong anchoring of the 5'-end of mRNA onto the platform of the 30S subunit, with numerous interactions between mRNA and the ribosome. Conversely, the 5' end of the 'elongator' mRNA lacking SD interactions is flexible, suggesting a different exit path for mRNA during elongation. After the initiation of translation, but while an SD interaction is still present, mRNA moves in the 3'-->5' direction with simultaneous clockwise rotation and lengthening of the SD duplex, bringing it into contact with ribosomal protein S2. | ||
| - | + | Structural basis for messenger RNA movement on the ribosome.,Yusupova G, Jenner L, Rees B, Moras D, Yusupov M Nature. 2006 Nov 16;444(7117):391-4. Epub 2006 Oct 18. PMID:17051149<ref>PMID:17051149</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
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==See Also== | ==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]] | *[[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]] | ||
Revision as of 02:51, 29 September 2014
Crystal structure of the 70S Thermus thermophilus ribosome showing how the 16S 3'-end mimicks mRNA E and P codons. This entry 2HGI contains 30S ribosomal subunit. The 50S ribosomal subunit can be found in PDB entry 2HGJ.
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