7z34: Difference between revisions
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The | ==Structure of pre-60S particle bound to DRG1(AFG2)== | ||
<StructureSection load='7z34' size='340' side='right'caption='[[7z34]], [[Resolution|resolution]] 3.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[7z34]] is a 15 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=7Z34 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7Z34 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]] 3.8Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=UNK:UNKNOWN'>UNK</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=7z34 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7z34 OCA], [https://pdbe.org/7z34 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7z34 RCSB], [https://www.ebi.ac.uk/pdbsum/7z34 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7z34 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/AFG2_YEAST AFG2_YEAST] ATP-dependent chaperone which uses the energy provided by ATP hydrolysis to generate mechanical force to disassemble protein complexes (PubMed:12006565, PubMed:17646390, PubMed:23185031, PubMed:24371142). Plays an essential role in the cytoplasmic maturation steps of pre-60S ribosomal particles by promoting the release of shuttling protein RLP24 from the pre-ribosomal particles (PubMed:17646390, PubMed:23185031, PubMed:24371142). This step facilitates the subsequent release of other shuttling proteins such as NOG1 and allows the transition of the pre-ribosomal particles to later maturation forms that bind REI1 (PubMed:17646390, PubMed:23185031, PubMed:24371142). Essential for viability (PubMed:8109176, PubMed:24371142).<ref>PMID:12006565</ref> <ref>PMID:17646390</ref> <ref>PMID:23185031</ref> <ref>PMID:24371142</ref> <ref>PMID:8109176</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The AAA-ATPase Drg1 is a key factor in eukaryotic ribosome biogenesis that initiates cytoplasmic maturation of the large ribosomal subunit. Drg1 releases the shuttling maturation factor Rlp24 from pre-60S particles shortly after nuclear export, a strict requirement for downstream maturation. The molecular mechanism of release remained elusive. Here, we report a series of cryo-EM structures that captured the extraction of Rlp24 from pre-60S particles by Saccharomyces cerevisiae Drg1. These structures reveal that Arx1 and the eukaryote-specific rRNA expansion segment ES27 form a joint docking platform that positions Drg1 for efficient extraction of Rlp24 from the pre-ribosome. The tips of the Drg1 N domains thereby guide the Rlp24 C terminus into the central pore of the Drg1 hexamer, enabling extraction by a hand-over-hand translocation mechanism. Our results uncover substrate recognition and processing by Drg1 step by step and provide a comprehensive mechanistic picture of the conserved modus operandi of AAA-ATPases. | |||
Visualizing maturation factor extraction from the nascent ribosome by the AAA-ATPase Drg1.,Prattes M, Grishkovskaya I, Hodirnau VV, Hetzmannseder C, Zisser G, Sailer C, Kargas V, Loibl M, Gerhalter M, Kofler L, Warren AJ, Stengel F, Haselbach D, Bergler H Nat Struct Mol Biol. 2022 Sep 12. pii: 10.1038/s41594-022-00832-5. doi:, 10.1038/s41594-022-00832-5. PMID:36097293<ref>PMID:36097293</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: Bergler | <div class="pdbe-citations 7z34" style="background-color:#fffaf0;"></div> | ||
[[Category: | |||
[[Category: Haselbach | ==See Also== | ||
[[Category: | *[[GTP-binding protein 3D structures|GTP-binding protein 3D structures]] | ||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Saccharomyces cerevisiae S288C]] | |||
[[Category: Bergler H]] | |||
[[Category: Grishkovskaya I]] | |||
[[Category: Haselbach D]] | |||
[[Category: Prattes M]] | |||
Latest revision as of 06:19, 19 July 2023
Structure of pre-60S particle bound to DRG1(AFG2)
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