View source for 7obr


==RNC-SRP early complex==
<StructureSection load='7obr' size='340' side='right'caption='[[7obr]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7obr]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7OBR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7OBR 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]] 2.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</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=7obr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7obr OCA], [https://pdbe.org/7obr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7obr RCSB], [https://www.ebi.ac.uk/pdbsum/7obr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7obr ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/G1TX70_RABIT G1TX70_RABIT] 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Co-translational protein targeting to membranes by the signal recognition particle (SRP) is a universally conserved pathway from bacteria to humans. In mammals, SRP and its receptor (SR) have many additional RNA features and protein components compared to the bacterial system, which were recently shown to play regulatory roles. Due to its complexity, the mammalian SRP targeting process is mechanistically not well understood. In particular, it is not clear how SRP recognizes translating ribosomes with exposed signal sequences and how the GTPase activity of SRP and SR is regulated. Here, we present electron cryo-microscopy structures of SRP and SRP.SR in complex with the translating ribosome. The structures reveal the specific molecular interactions between SRP and the emerging signal sequence and the elements that regulate GTPase activity of SRP.SR. Our results suggest the molecular mechanism of how eukaryote-specific elements regulate the early and late stages of SRP-dependent protein targeting.

Molecular mechanism of cargo recognition and handover by the mammalian signal recognition particle.,Jomaa A, Eitzinger S, Zhu Z, Chandrasekar S, Kobayashi K, Shan SO, Ban N Cell Rep. 2021 Jul 13;36(2):109350. doi: 10.1016/j.celrep.2021.109350. PMID:34260909<ref>PMID:34260909</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7obr" style="background-color:#fffaf0;"></div>

==See Also==
*[[Signal recognition particle 3D structures|Signal recognition particle 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Ban N]]
[[Category: Jomaa A]]