2fh5: Difference between revisions

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{{Seed}}
[[Image:2fh5.png|left|200px]]


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==The Structure of the Mammalian SRP Receptor==
The line below this paragraph, containing "STRUCTURE_2fh5", creates the "Structure Box" on the page.
<StructureSection load='2fh5' size='340' side='right'caption='[[2fh5]], [[Resolution|resolution]] 2.45&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2fh5]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FH5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2FH5 FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.45&#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=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
{{STRUCTURE_2fh5|  PDB=2fh5  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2fh5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2fh5 OCA], [https://pdbe.org/2fh5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2fh5 RCSB], [https://www.ebi.ac.uk/pdbsum/2fh5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2fh5 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/SRPRA_HUMAN SRPRA_HUMAN] Component of the SRP (signal recognition particle) receptor. Ensures, in conjunction with the signal recognition particle, the correct targeting of the nascent secretory proteins to the endoplasmic reticulum membrane system.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fh/2fh5_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2fh5 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The eukaryotic signal recognition particle (SRP) and its receptor (SR) play a central role in co-translational targeting of secretory and membrane proteins to the endoplasmic reticulum. The SR is a heterodimeric complex assembled by the two GTPases SRalpha and SRbeta, which is membrane-anchored. Here we present the 2.45-A structure of mammalian SRbeta in its Mg2+ GTP-bound state in complex with the minimal binding domain of SRalpha termed SRX. SRbeta is a member of the Ras-GTPase superfamily closely related to Arf and Sar1, while SRX belongs to the SNARE-like superfamily with a fold also known as longin domain. SRX binds to the P loop and the switch regions of SRbeta-GTP. The binding mode and structural similarity with other GTPase-effector complexes suggests a co-GAP (GTPase-activating protein) function for SRX. Comparison with the homologous yeast structure and other longin domains reveals a conserved adjustable hydrophobic surface within SRX which is of central importance for the SRbeta-GTP:SRX interface. A helix swap in SRX results in the formation of a dimer in the crystal structure. Based on structural conservation we present the SRbeta-GTP:SRX structure as a prototype for conserved interactions in a variety of GTPase regulated targeting events occurring at endomembranes.


===The Structure of the Mammalian SRP Receptor===
The structure of the mammalian signal recognition particle (SRP) receptor as prototype for the interaction of small GTPases with Longin domains.,Schlenker O, Hendricks A, Sinning I, Wild K J Biol Chem. 2006 Mar 31;281(13):8898-906. Epub 2006 Jan 26. PMID:16439358<ref>PMID:16439358</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2fh5" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_16439358}}, adds the Publication Abstract to the page
*[[Signal recognition particle receptor|Signal recognition particle receptor]]
(as it appears on PubMed at http://www.pubmed.gov), where 16439358 is the PubMed ID number.
*[[Signal recognition particle receptor 3D structures|Signal recognition particle receptor 3D structures]]
-->
== References ==
{{ABSTRACT_PUBMED_16439358}}
<references/>
 
__TOC__
==About this Structure==
</StructureSection>
2FH5 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2FH5 OCA].
 
==Reference==
The structure of the mammalian signal recognition particle (SRP) receptor as prototype for the interaction of small GTPases with Longin domains., Schlenker O, Hendricks A, Sinning I, Wild K, J Biol Chem. 2006 Mar 31;281(13):8898-906. Epub 2006 Jan 26. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16439358 16439358]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Protein complex]]
[[Category: Schlenker O]]
[[Category: Schlenker, O.]]
[[Category: Sinning I]]
[[Category: Sinning, I.]]
[[Category: Wild K]]
[[Category: Wild, K.]]
[[Category: Endomembrane targeting]]
[[Category: Gap]]
[[Category: Gtpase]]
[[Category: Longin domain]]
[[Category: Sedl]]
[[Category: Signal recognition particle receptor]]
[[Category: X-ray structure]]
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 04:03:09 2008''

Latest revision as of 07:59, 30 October 2024

The Structure of the Mammalian SRP Receptor

2fh5, resolution 2.45Å

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