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1jqs
From Proteopedia
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| - | [[ | + | ==Fitting of L11 protein and elongation factor G (domain G' and V) in the cryo-em map of E. coli 70S ribosome bound with EF-G and GMPPCP, a nonhydrolysable GTP analog== |
| + | <StructureSection load='1jqs' size='340' side='right' caption='[[1jqs]]' scene=''> | ||
| + | == Structural highlights == | ||
| + | <table><tr><td colspan='2'>[[1jqs]] is a 3 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=1JQS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JQS FirstGlance]. <br> | ||
| + | </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1eg0|1eg0]]</td></tr> | ||
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jqs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jqs OCA], [http://pdbe.org/1jqs PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1jqs RCSB], [http://www.ebi.ac.uk/pdbsum/1jqs PDBsum]</span></td></tr> | ||
| + | </table> | ||
| + | == Function == | ||
| + | [[http://www.uniprot.org/uniprot/RL11_THEMA RL11_THEMA]] This protein binds directly to 23S ribosomal RNA. [[http://www.uniprot.org/uniprot/EFG_THETH EFG_THETH]] Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome. | ||
| + | == 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/jq/1jqs_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/main_output.php?pdb_ID=1jqs ConSurf]. | ||
| + | <div style="clear:both"></div> | ||
| + | <div style="background-color:#fffaf0;"> | ||
| + | == Publication Abstract from PubMed == | ||
| + | L11 protein is located at the base of the L7/L12 stalk of the 50 S subunit of the Escherichia coli ribosome. Because of the flexible nature of the region, recent X-ray crystallographic studies of the 50 S subunit failed to locate the N-terminal domain of the protein. We have determined the position of the complete L11 protein by comparing a three-dimensional cryo-EM reconstruction of the 70 S ribosome, isolated from a mutant lacking ribosomal protein L11, with the three-dimensional map of the wild-type ribosome. Fitting of the X-ray coordinates of L11-23 S RNA complex and EF-G into the cryo-EM maps combined with molecular modeling, reveals that, following EF-G-dependent GTP hydrolysis, domain V of EF-G intrudes into the cleft between the 23 S ribosomal RNA and the N-terminal domain of L11 (where the antibiotic thiostrepton binds), causing the N-terminal domain to move and thereby inducing the formation of the arc-like connection with the G' domain of EF-G. The results provide a new insight into the mechanism of EF-G-dependent translocation. | ||
| - | + | Localization of L11 protein on the ribosome and elucidation of its involvement in EF-G-dependent translocation.,Agrawal RK, Linde J, Sengupta J, Nierhaus KH, Frank J J Mol Biol. 2001 Aug 24;311(4):777-87. PMID:11518530<ref>PMID:11518530</ref> | |
| - | + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |
| - | + | </div> | |
| - | + | <div class="pdbe-citations 1jqs" style="background-color:#fffaf0;"></div> | |
| - | + | ||
| - | == | + | |
| - | + | ||
==See Also== | ==See Also== | ||
| + | *[[Elongation factor|Elongation factor]] | ||
*[[Ribosomal protein L11|Ribosomal protein L11]] | *[[Ribosomal protein L11|Ribosomal protein L11]] | ||
| - | + | == References == | |
| - | == | + | <references/> |
| - | < | + | __TOC__ |
| + | </StructureSection> | ||
[[Category: Escherichia coli]] | [[Category: Escherichia coli]] | ||
| - | [[Category: Agrawal, R K | + | [[Category: Agrawal, R K]] |
| - | [[Category: Frank, J | + | [[Category: Frank, J]] |
| - | [[Category: Linde, J | + | [[Category: Linde, J]] |
| - | [[Category: Nierhaus, K H | + | [[Category: Nierhaus, K H]] |
| - | [[Category: Segupta, J | + | [[Category: Segupta, J]] |
[[Category: 70s e coli ribosome]] | [[Category: 70s e coli ribosome]] | ||
[[Category: Cryo-em]] | [[Category: Cryo-em]] | ||
Current revision
Fitting of L11 protein and elongation factor G (domain G' and V) in the cryo-em map of E. coli 70S ribosome bound with EF-G and GMPPCP, a nonhydrolysable GTP analog
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Categories: Escherichia coli | Agrawal, R K | Frank, J | Linde, J | Nierhaus, K H | Segupta, J | 70s e coli ribosome | Cryo-em | Ef-g | Gtp state | L11 | Ribosome
