6ft6: Difference between revisions
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==Structure of the Nop53 pre-60S particle bound to the exosome nuclear cofactors== | |||
<SX load='6ft6' size='340' side='right' viewer='molstar' caption='[[6ft6]], [[Resolution|resolution]] 3.90Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6ft6]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FT6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6FT6 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]] 3.9Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <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=6ft6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ft6 OCA], [https://pdbe.org/6ft6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ft6 RCSB], [https://www.ebi.ac.uk/pdbsum/6ft6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ft6 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/RL2A_YEAST RL2A_YEAST] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The RNA exosome complex processes and degrades a wide range of transcripts, including ribosomal RNAs. We used cryo-EM to visualize the yeast nuclear exosome holo-complex captured on a precursor large ribosomal subunit (pre-60S) during 7S-to-5.8S rRNA processing. The cofactors of the nuclear exosome are sandwiched between the ribonuclease core complex (Exo-10) and the remodeled "foot" structure of the pre-60S particle, which harbors the 5.8S rRNA precursor. The exosome-associated helicase Mtr4 recognizes the preribosomal substrate by docking to specific sites on the 25S rRNA, captures the 3' extension of the 5.8S rRNA, and channels it toward Exo-10. The structure elucidates how the exosome forms a structural and functional unit together with its massive pre-60S substrate to process rRNA during ribosome maturation. | |||
Structure of the nuclear exosome captured on a maturing preribosome.,Schuller JM, Falk S, Fromm L, Hurt E, Conti E Science. 2018 Mar 8. pii: science.aar5428. doi: 10.1126/science.aar5428. PMID:29519915<ref>PMID:29519915</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 6ft6" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Ribosome 3D structures|Ribosome 3D structures]] | |||
*[[Ribosome biogenesis protein 3D structures|Ribosome biogenesis protein 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</SX> | |||
[[Category: Large Structures]] | |||
[[Category: Saccharomyces cerevisiae S288C]] | |||
[[Category: Conti E]] | |||
[[Category: Falk S]] | |||
[[Category: Schuller JM]] | |||
Latest revision as of 15:38, 6 November 2024
Structure of the Nop53 pre-60S particle bound to the exosome nuclear cofactorsStructure of the Nop53 pre-60S particle bound to the exosome nuclear cofactors
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