This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.

2yhs

From Proteopedia

(Difference between revisions)

Jump to: navigation, search

Revision as of 10:05, 4 August 2016

STRUCTURE OF THE E. COLI SRP RECEPTOR FTSY

Structural highlights

2yhs is a 1 chain structure with sequence from Ecoli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1fts, 2xxa
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[FTSY_ECOLI] Involved in targeting and insertion of nascent membrane proteins into the cytoplasmic membrane. Acts as a receptor for the complex formed by the signal recognition particle (SRP) and the ribosome-nascent chain (RNC). Interaction with SRP-RNC leads to the transfer of the RNC complex to the Sec translocase for insertion into the membrane, the hydrolysis of GTP by both Ffh and FtsY, and the dissociation of the SRP-FtsY complex into the individual components.^[1] ^[2] ^[3] ^[4] ^[5] ^[6]

Publication Abstract from PubMed

Co-translational protein targeting to the membrane is mediated by the signal recognition particle (SRP) and its receptor (FtsY). Their homologous GTPase domains interact at the membrane and form a heterodimer in which both GTPases are activated. The prerequisite for protein targeting is the interaction of FtsY with phospholipids. However, the mechanism of FtsY regulation by phospholipids remained unclear. Here we show that the N-terminus of FtsY (A domain) is natively unfolded in solution and define the complete membrane targeting sequence (MTS). We show that the MTS is highly dynamic in solution, independent of nucleotides and directly responds to the density of anionic phospholipids by a random coil-helix transition. This conformational switch is essential for tethering FtsY to membranes and activates the GTPase for its subsequent interaction with SRP. Our results underline the dynamics of lipid/protein interactions and their importance in the regulation of protein targeting and translocation across biological membranes.

Lipids trigger a conformational switch regulating signal recognition particle (SRP)-mediated protein targeting.,Stjepanovic G, Kapp K, Bange G, Graf C, Parlitz R, Wild K, Mayer MP, Sinning I J Biol Chem. 2011 May 3. PMID:21543314^[7]

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

References

↑ Luirink J, ten Hagen-Jongman CM, van der Weijden CC, Oudega B, High S, Dobberstein B, Kusters R. An alternative protein targeting pathway in Escherichia coli: studies on the role of FtsY. EMBO J. 1994 May 15;13(10):2289-96. PMID:8194520
↑ Powers T, Walter P. Co-translational protein targeting catalyzed by the Escherichia coli signal recognition particle and its receptor. EMBO J. 1997 Aug 15;16(16):4880-6. PMID:9305630 doi:10.1093/emboj/16.16.4880
↑ Peluso P, Shan SO, Nock S, Herschlag D, Walter P. Role of SRP RNA in the GTPase cycles of Ffh and FtsY. Biochemistry. 2001 Dec 18;40(50):15224-33. PMID:11735405
↑ Tian H, Beckwith J. Genetic screen yields mutations in genes encoding all known components of the Escherichia coli signal recognition particle pathway. J Bacteriol. 2002 Jan;184(1):111-8. PMID:11741850
↑ Buskiewicz I, Deuerling E, Gu SQ, Jockel J, Rodnina MV, Bukau B, Wintermeyer W. Trigger factor binds to ribosome-signal-recognition particle (SRP) complexes and is excluded by binding of the SRP receptor. Proc Natl Acad Sci U S A. 2004 May 25;101(21):7902-6. Epub 2004 May 17. PMID:15148364 doi:http://dx.doi.org/10.1073/pnas.0402231101
↑ Shan SO, Chandrasekar S, Walter P. Conformational changes in the GTPase modules of the signal reception particle and its receptor drive initiation of protein translocation. J Cell Biol. 2007 Aug 13;178(4):611-20. Epub 2007 Aug 6. PMID:17682051 doi:http://dx.doi.org/10.1083/jcb.200702018
↑ Stjepanovic G, Kapp K, Bange G, Graf C, Parlitz R, Wild K, Mayer MP, Sinning I. Lipids trigger a conformational switch regulating signal recognition particle (SRP)-mediated protein targeting. J Biol Chem. 2011 May 3. PMID:21543314 doi:10.1074/jbc.M110.212340

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2yhs"

@@ Line 1: / Line 1: @@
 ==STRUCTURE OF THE E. COLI SRP RECEPTOR FTSY==
 <StructureSection load='2yhs' size='340' side='right' caption='[[2yhs]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2yhs]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YHS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2YHS FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2yhs]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Ecoli Ecoli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YHS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2YHS FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1fts|1fts]], [[2xxa|2xxa]]</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=2yhs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2yhs OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2yhs RCSB], [http://www.ebi.ac.uk/pdbsum/2yhs 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=2yhs FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2yhs OCA], [http://pdbe.org/2yhs PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2yhs RCSB], [http://www.ebi.ac.uk/pdbsum/2yhs PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2yhs ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2yhs" style="background-color:#fffaf0;"></div>
 ==See Also==
@@ Line 24: / Line 26: @@
 __TOC__
 </StructureSection>
-[[Category: Escherichia coli]]
+[[Category: Ecoli]]
 [[Category: Bange, G]]
 [[Category: Sinning, I]]

2yhs

From Proteopedia

Revision as of 10:05, 4 August 2016

STRUCTURE OF THE E. COLI SRP RECEPTOR FTSY

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox