6y57: Difference between revisions
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==Structure of human ribosome in hybrid-PRE state== | |||
<StructureSection load='6y57' size='340' side='right'caption='[[6y57]], [[Resolution|resolution]] 3.50Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6y57]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6Y57 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6Y57 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.5Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6y57 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6y57 OCA], [https://pdbe.org/6y57 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6y57 RCSB], [https://www.ebi.ac.uk/pdbsum/6y57 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6y57 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/RS2_HUMAN RS2_HUMAN] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Ribosomes undergo multiple conformational transitions during translation elongation. Here, we report the high-resolution cryoelectron microscopy (cryo-EM) structure of the human 80S ribosome in the post-decoding pre-translocation state (classical-PRE) at 3.3-A resolution along with the rotated (hybrid-PRE) and the post-translocation states (POST). The classical-PRE state ribosome structure reveals a previously unobserved interaction between the C-terminal region of the conserved ribosomal protein uS19 and the A- and P-site tRNAs and the mRNA in the decoding site. In addition to changes in the inter-subunit bridges, analysis of different ribosomal conformations reveals the dynamic nature of this domain and suggests a role in tRNA accommodation and translocation during elongation. Furthermore, we show that disease-associated mutations in uS19 result in increased frameshifting. Together, this structure-function analysis provides mechanistic insights into the role of the uS19 C-terminal tail in the context of mammalian ribosomes. | |||
Dynamics of uS19 C-Terminal Tail during the Translation Elongation Cycle in Human Ribosomes.,Bhaskar V, Graff-Meyer A, Schenk AD, Cavadini S, von Loeffelholz O, Natchiar SK, Artus-Revel CG, Hotz HR, Bretones G, Klaholz BP, Chao JA Cell Rep. 2020 Apr 7;31(1):107473. doi: 10.1016/j.celrep.2020.03.037. PMID:32268098<ref>PMID:32268098</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 6y57" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Ribosome 3D structures|Ribosome 3D structures]] | |||
*[[3D sructureseceptor for activated protein kinase C 1|3D sructureseceptor for activated protein kinase C 1]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | |||
[[Category: Large Structures]] | |||
[[Category: Bhaskar V]] | |||
[[Category: Cavadini S]] | |||
[[Category: Chao JA]] | |||
[[Category: Klaholz BP]] | |||
[[Category: Natchiar SK]] | |||
[[Category: Schenk AD]] | |||
[[Category: Von Loeffelholz O]] | |||
Latest revision as of 13:20, 22 May 2024
Structure of human ribosome in hybrid-PRE stateStructure of human ribosome in hybrid-PRE state
Structural highlights
FunctionPublication Abstract from PubMedRibosomes undergo multiple conformational transitions during translation elongation. Here, we report the high-resolution cryoelectron microscopy (cryo-EM) structure of the human 80S ribosome in the post-decoding pre-translocation state (classical-PRE) at 3.3-A resolution along with the rotated (hybrid-PRE) and the post-translocation states (POST). The classical-PRE state ribosome structure reveals a previously unobserved interaction between the C-terminal region of the conserved ribosomal protein uS19 and the A- and P-site tRNAs and the mRNA in the decoding site. In addition to changes in the inter-subunit bridges, analysis of different ribosomal conformations reveals the dynamic nature of this domain and suggests a role in tRNA accommodation and translocation during elongation. Furthermore, we show that disease-associated mutations in uS19 result in increased frameshifting. Together, this structure-function analysis provides mechanistic insights into the role of the uS19 C-terminal tail in the context of mammalian ribosomes. Dynamics of uS19 C-Terminal Tail during the Translation Elongation Cycle in Human Ribosomes.,Bhaskar V, Graff-Meyer A, Schenk AD, Cavadini S, von Loeffelholz O, Natchiar SK, Artus-Revel CG, Hotz HR, Bretones G, Klaholz BP, Chao JA Cell Rep. 2020 Apr 7;31(1):107473. doi: 10.1016/j.celrep.2020.03.037. PMID:32268098[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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