4p3e

From Proteopedia

(Difference between revisions)

Revision as of 21:56, 4 August 2016

Structure of the human SRP S domain

Structural highlights

4p3e is a 3 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	4p3f, 4p3g
Gene:	SRP19 (HUMAN), SRP68 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[SRP68_HUMAN] Signal-recognition-particle assembly has a crucial role in targeting secretory proteins to the rough endoplasmic reticulum membrane. SRP68 binds the 7S RNA, SRP72 binds to this complex subsequently. This ribonucleoprotein complex might interact directly with the docking protein in the ER membrane and possibly participate in the elongation arrest function. [SRP19_HUMAN] Signal-recognition-particle assembly, binds directly to 7S RNA and mediates binding of the 54 kDa subunit of the SRP.

Publication Abstract from PubMed

The signal recognition particle (SRP) is central to membrane protein targeting; SRP RNA is essential for SRP assembly, elongation arrest, and activation of SRP guanosine triphosphatases. In eukaryotes, SRP function relies on the SRP68-SRP72 heterodimer. We present the crystal structures of the RNA-binding domain of SRP68 (SRP68-RBD) alone and in complex with SRP RNA and SRP19. SRP68-RBD is a tetratricopeptide-like module that binds to a RNA three-way junction, bends the RNA, and inserts an alpha-helical arginine-rich motif (ARM) into the major groove. The ARM opens the conserved 5f RNA loop, which in ribosome-bound SRP establishes a contact to ribosomal RNA. Our data provide the structural basis for eukaryote-specific, SRP68-driven RNA remodeling required for protein translocation.

SRP RNA remodeling by SRP68 explains its role in protein translocation.,Grotwinkel JT, Wild K, Segnitz B, Sinning I Science. 2014 Apr 4;344(6179):101-4. doi: 10.1126/science.1249094. PMID:24700861^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Grotwinkel JT, Wild K, Segnitz B, Sinning I. SRP RNA remodeling by SRP68 explains its role in protein translocation. Science. 2014 Apr 4;344(6179):101-4. doi: 10.1126/science.1249094. PMID:24700861 doi:http://dx.doi.org/10.1126/science.1249094

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4p3e"

@@ Line 1: / Line 1: @@
 ==Structure of the human SRP S domain==
 <StructureSection load='4p3e' size='340' side='right' caption='[[4p3e]], [[Resolution|resolution]] 3.50&Aring;' scene=''>
@@ Line 6: / Line 7: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4p3f|4p3f]], [[4p3g|4p3g]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">SRP19 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), SRP68 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4p3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p3e OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4p3e RCSB], [http://www.ebi.ac.uk/pdbsum/4p3e PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4p3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4p3e OCA], [http://pdbe.org/4p3e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4p3e RCSB], [http://www.ebi.ac.uk/pdbsum/4p3e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4p3e ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 18: / Line 19: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4p3e" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

4p3e

From Proteopedia

Revision as of 21:56, 4 August 2016

Structure of the human SRP S domain

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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