6lsr

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Current revision (09:09, 9 April 2025) (edit) (undo)
 
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==Cryo-EM structure of a pre-60S ribosomal subunit - state B==
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<StructureSection load='6lsr' size='340' side='right'caption='[[6lsr]]' scene=''>
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<StructureSection load='6lsr' size='340' side='right'caption='[[6lsr]], [[Resolution|resolution]] 3.13&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol= FirstGlance]. <br>
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<table><tr><td colspan='2'>[[6lsr]] 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=6LSR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6LSR FirstGlance]. <br>
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</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6lsr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6lsr OCA], [http://pdbe.org/6lsr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6lsr RCSB], [http://www.ebi.ac.uk/pdbsum/6lsr PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6lsr ProSAT]</span></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.13&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=1MA:6-HYDRO-1-METHYLADENOSINE-5-MONOPHOSPHATE'>1MA</scene>, <scene name='pdbligand=2MG:2N-METHYLGUANOSINE-5-MONOPHOSPHATE'>2MG</scene>, <scene name='pdbligand=5MC:5-METHYLCYTIDINE-5-MONOPHOSPHATE'>5MC</scene>, <scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene>, <scene name='pdbligand=6MZ:N6-METHYLADENOSINE-5-MONOPHOSPHATE'>6MZ</scene>, <scene name='pdbligand=7MG:7N-METHYL-8-HYDROGUANOSINE-5-MONOPHOSPHATE'>7MG</scene>, <scene name='pdbligand=A2M:2-O-METHYLADENOSINE+5-(DIHYDROGEN+PHOSPHATE)'>A2M</scene>, <scene name='pdbligand=B8H:[(2~{R},3~{S},4~{R},5~{S})-5-[1-methyl-2,4-bis(oxidanylidene)pyrimidin-5-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B8H</scene>, <scene name='pdbligand=B8K:[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-7-ethanoyl-6-oxidanylidene-1,8-dihydropurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B8K</scene>, <scene name='pdbligand=B8Q:[(2~{R},3~{S},4~{R},5~{R})-5-(4-azanyl-3-methyl-2-oxidanylidene-4~{H}-pyrimidin-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B8Q</scene>, <scene name='pdbligand=B8T:[(2~{R},3~{S},4~{R},5~{R})-5-[4-(methylamino)-2-oxidanylidene-pyrimidin-1-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B8T</scene>, <scene name='pdbligand=B8W:[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-6-methoxy-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B8W</scene>, <scene name='pdbligand=B9B:[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-6-propoxy-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>B9B</scene>, <scene name='pdbligand=B9H:[(2~{R},3~{R},4~{R},5~{R})-5-(4-azanyl-2-oxidanylidene-3-propyl-4~{H}-pyrimidin-1-yl)-4-methoxy-3-oxidanyl-oxolan-2-yl]methyl+dihydrogen+phosphate'>B9H</scene>, <scene name='pdbligand=BGH:[(2~{R},3~{R},4~{R},5~{R})-5-(2-azanyl-7-ethanoyl-6-oxidanylidene-1,8-dihydropurin-9-yl)-4-methoxy-3-oxidanyl-oxolan-2-yl]methyl+dihydrogen+phosphate'>BGH</scene>, <scene name='pdbligand=E6G:[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-6-ethoxy-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>E6G</scene>, <scene name='pdbligand=E7G:[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-7-ethyl-6-oxidanylidene-1,8-dihydropurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>E7G</scene>, <scene name='pdbligand=I4U:[(2~{R},3~{S},4~{R},5~{R})-3,4-bis(oxidanyl)-5-(2-oxidanylidene-4-propan-2-yloxy-pyrimidin-1-yl)oxolan-2-yl]methyl+dihydrogen+phosphate'>I4U</scene>, <scene name='pdbligand=M7A:[(2~{R},3~{S},4~{R},5~{R})-5-(6-azanyl-7-methyl-8~{H}-purin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>M7A</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MHG:[(2~{R},3~{S},4~{R},5~{R})-5-[2-(methylamino)-7-[(3~{S})-3-methylpentyl]-6-oxidanylidene-1,8-dihydropurin-9-yl]-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>MHG</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene>, <scene name='pdbligand=OMG:O2-METHYLGUANOSINE-5-MONOPHOSPHATE'>OMG</scene>, <scene name='pdbligand=OMU:O2-METHYLURIDINE+5-MONOPHOSPHATE'>OMU</scene>, <scene name='pdbligand=P4U:[(2~{R},3~{S},4~{R},5~{R})-3,4-bis(oxidanyl)-5-(2-oxidanylidene-4-propoxy-pyrimidin-1-yl)oxolan-2-yl]methyl+dihydrogen+phosphate'>P4U</scene>, <scene name='pdbligand=P7G:[(2~{R},3~{S},4~{R},5~{R})-5-(2-azanyl-6-oxidanylidene-7-propyl-3,8-dihydropurin-9-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>P7G</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=UR3:3-METHYLURIDINE-5-MONOPHOSHATE'>UR3</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6lsr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6lsr OCA], [https://pdbe.org/6lsr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6lsr RCSB], [https://www.ebi.ac.uk/pdbsum/6lsr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6lsr ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[https://www.uniprot.org/uniprot/LSG1_HUMAN LSG1_HUMAN] GTPase required for the XPO1/CRM1-mediated nuclear export of the 60S ribosomal subunit. Probably acts by mediating the release of NMD3 from the 60S ribosomal subunit after export into the cytoplasm (Probable).<ref>PMID:16209721</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Ribosome biogenesis is an elaborate and energetically expensive program that involve two hundred protein factors in eukaryotes. Nuclear export of pre-ribosomal particles is one central step which also serves as an internal structural checkpoint to ensure the proper completion of nuclear assembly events. Here we present four structures of human pre-60S particles isolated through a nuclear export factor NMD3, representing assembly stages immediately before and after nuclear export. These structures reveal locations of a dozen of human factors, including an uncharacterized factor TMA16 localized between the 5S RNA and the P0 stalk. Comparison of these structures shows a progressive maturation for the functional regions, such as peptidyl transferase centre and peptide exit tunnel, and illustrate a sequence of factor-assisted rRNA maturation events. These data facilitate our understanding of the global conservation of ribosome assembly in eukaryotes and species-specific features of human assembly factors.
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Structural snapshots of human pre-60S ribosomal particles before and after nuclear export.,Liang X, Zuo MQ, Zhang Y, Li N, Ma C, Dong MQ, Gao N Nat Commun. 2020 Jul 15;11(1):3542. doi: 10.1038/s41467-020-17237-x. PMID:32669547<ref>PMID:32669547</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 6lsr" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Eukaryotic initiation factor 3D structures|Eukaryotic initiation factor 3D structures]]
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Z-disk]]
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[[Category: Dong M]]
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[[Category: Gao N]]
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[[Category: Li N]]
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[[Category: Liang X]]
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[[Category: Ma C]]
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[[Category: Zhang Y]]
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[[Category: Zuo M]]

Current revision

Cryo-EM structure of a pre-60S ribosomal subunit - state B

PDB ID 6lsr

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