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4xpm

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Revision as of 21:29, 15 October 2015

Crystal structure of EGO-TC

Structural highlights

4xpm is a 3 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[MEH1_YEAST] Component of the GSE complex, a GTPase complex required for intracellular sorting of GAP1 out of the endosome. Component of the EGO complex, a complex involved in the regulation of microautophagy.^[1] ^[2] [SLM4_YEAST] Component of the GSE complex, a GTPase complex required for intracellular sorting of GAP1 out of the endosome. Component of the EGO complex, a complex involved in the regulation of microautophagy.^[3] ^[4]

Publication Abstract from PubMed

The target of rapamycin complex 1 (TORC1) integrates various hormonal and nutrient signals to regulate cell growth, proliferation, and differentiation. Amino acid-dependent activation of TORC1 is mediated via the yeast EGO complex (EGOC) consisting of Gtr1, Gtr2, Ego1, and Ego3. Here, we identify the previously uncharacterized Ycr075w-a/Ego2 protein as an additional EGOC component that is required for the integrity and localization of the heterodimeric Gtr1-Gtr2 GTPases, equivalent to mammalian Rag GTPases. We also report the crystal structure of the Ego1-Ego2-Ego3 ternary complex (EGO-TC) at 2.4 A resolution, in which Ego2 and Ego3 form a heterodimer flanked along one side by Ego1. Structural data also reveal the structural conservation of protein components between the yeast EGO-TC and the human Ragulator, which acts as a GEF for Rag GTPases. Interestingly, however, artificial tethering of Gtr1-Gtr2 to the vacuolar membrane is sufficient to activate TORC1 in response to amino acids even in the absence of the EGO-TC. Our structural and functional data therefore support a model in which the EGO-TC acts as a scaffold for Rag GTPases in TORC1 signaling.Cell Research advance online publication 24 July 2015; doi:10.1038/cr.2015.86.

Crystal structure of the Ego1-Ego2-Ego3 complex and its role in promoting Rag GTPase-dependent TORC1 signaling.,Powis K, Zhang T, Panchaud N, Wang R, De Virgilio C, Ding J Cell Res. 2015 Jul 24. doi: 10.1038/cr.2015.86. PMID:26206314^[5]

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

References

↑ Dubouloz F, Deloche O, Wanke V, Cameroni E, De Virgilio C. The TOR and EGO protein complexes orchestrate microautophagy in yeast. Mol Cell. 2005 Jul 1;19(1):15-26. PMID:15989961 doi:10.1016/j.molcel.2005.05.020
↑ Gao M, Kaiser CA. A conserved GTPase-containing complex is required for intracellular sorting of the general amino-acid permease in yeast. Nat Cell Biol. 2006 Jul;8(7):657-67. Epub 2006 May 28. PMID:16732272 doi:ncb1419
↑ Dubouloz F, Deloche O, Wanke V, Cameroni E, De Virgilio C. The TOR and EGO protein complexes orchestrate microautophagy in yeast. Mol Cell. 2005 Jul 1;19(1):15-26. PMID:15989961 doi:10.1016/j.molcel.2005.05.020
↑ Gao M, Kaiser CA. A conserved GTPase-containing complex is required for intracellular sorting of the general amino-acid permease in yeast. Nat Cell Biol. 2006 Jul;8(7):657-67. Epub 2006 May 28. PMID:16732272 doi:ncb1419
↑ Powis K, Zhang T, Panchaud N, Wang R, De Virgilio C, Ding J. Crystal structure of the Ego1-Ego2-Ego3 complex and its role in promoting Rag GTPase-dependent TORC1 signaling. Cell Res. 2015 Jul 24. doi: 10.1038/cr.2015.86. PMID:26206314 doi:http://dx.doi.org/10.1038/cr.2015.86

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/4xpm"

@@ Line 3: / Line 3: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[4xpm]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4XPM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4XPM FirstGlance]. <br>
-</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=4xpm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xpm OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4xpm RCSB], [http://www.ebi.ac.uk/pdbsum/4xpm PDBsum]</span></td></tr>
+</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=4xpm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4xpm OCA], [http://pdbe.org/4xpm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4xpm RCSB], [http://www.ebi.ac.uk/pdbsum/4xpm PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 15: / Line 15: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 4xpm" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

4xpm

From Proteopedia

Revision as of 21:29, 15 October 2015

Crystal structure of EGO-TC

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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