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New page: '''Unreleased structure''' The entry 6frk is ON HOLD until sometime in the future Authors: Description: Category: Unreleased Structures
 
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'''Unreleased structure'''


The entry 6frk is ON HOLD  until sometime in the future
==Structure of a prehandover mammalian ribosomal SRP and SRP receptor targeting complex==
<SX load='6frk' size='340' side='right' viewer='molstar' caption='[[6frk]], [[Resolution|resolution]] 3.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6frk]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Canis_lupus_familiaris Canis lupus familiaris] and [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6FRK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6FRK 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]] 3.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</scene>, <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=6frk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6frk OCA], [https://pdbe.org/6frk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6frk RCSB], [https://www.ebi.ac.uk/pdbsum/6frk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6frk ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SRP09_CANLF SRP09_CANLF]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Signal recognition particle (SRP) targets proteins to the endoplasmic reticulum (ER). SRP recognizes the ribosome synthesizing a signal sequence and delivers it to the SRP receptor (SR) on the ER membrane followed by the transfer of the signal sequence to the translocon. Here, we present the cryo-EM structure of the mammalian translating ribosome in complex with SRP and SR in a conformation preceding signal sequence handover. The structure visualizes all eukaryotic-specific SRP and SR proteins and reveals their roles in stabilizing this conformation by forming a large protein assembly at the distal site of SRP RNA. We provide biochemical evidence that the GTP hydrolysis of SRP*SR is delayed at this stage, possibly to provide a time window for signal sequence handover to the translocon.


Authors:  
Structure of a prehandover mammalian ribosomal SRP*SRP receptor targeting complex.,Kobayashi K, Jomaa A, Lee JH, Chandrasekar S, Boehringer D, Shan SO, Ban N Science. 2018 Mar 22. pii: science.aar7924. doi: 10.1126/science.aar7924. PMID:29567807<ref>PMID:29567807</ref>


Description:  
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
<div class="pdbe-citations 6frk" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Ribosome 3D structures|Ribosome 3D structures]]
== References ==
<references/>
__TOC__
</SX>
[[Category: Canis lupus familiaris]]
[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Ban N]]
[[Category: Jomaa A]]
[[Category: Kobayashi K]]
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