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1u90

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Revision as of 21:49, 10 September 2015

Crystal structures of Ral-GppNHp and Ral-GDP reveal two novel binding sites that are also present in Ras and Rap

Structural highlights

1u90 is a 2 chain structure with sequence from Cotton-top tamarin. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	1u8y, 1u8z
Gene:	Rala, Ral-a, Ral (Cotton-top tamarin)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[RALA_SAGOE] Multifunctional GTPase involved in a variety of cellular processes including gene expression, cell migration, cell proliferation, oncogenic transformation and membrane trafficking. Accomplishes its multiple functions by interacting with distinct downstream effectors. Acts as a GTP sensor for GTP-dependent exocytosis of dense core vesicles. Plays a role in the early stages of cytokinesis and is required to tether the exocyst to the cytokinetic furrow. The RALA-exocyst complex regulates integrin-dependent membrane raft exocytosis and growth signaling. Key regulator of LPAR1 signaling and competes with ADRBK1 for binding to LPAR1 thus affecting the signaling properties of the receptor. Required for anchorage-independent proliferation of transformed cells (By similarity).

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

RalA is a GTPase with effectors such as Sec5 and Exo84 in the exocyst complex and RalBP1, a GAP for Rho proteins. We report the crystal structures of Ral-GppNHp and Ral-GDP. Disordered switch I and switch II, located away from crystal contacts, are observed in one of the molecules in the asymmetric unit of the Ral-GppNHp structure. In the other molecule in the asymmetric unit, a second Mg(2+) ion is bound to the GppNHp gamma-phosphate in an environment in which switch I is pulled away from the nucleotide and switch II is found in a tight beta turn. Clustering of conserved residues on the surface of Ral-GppNHp identifies two putative sites for protein-protein interaction. One site is adjacent to switch I. The other is modulated by switch II and is obstructed in Ral-GDP. The Ral structures are discussed in the context of the published structures of the Ral/Sec5 complex, Ras, and Rap.

Crystal structures of Ral-GppNHp and Ral-GDP reveal two binding sites that are also present in Ras and Rap.,Nicely NI, Kosak J, de Serrano V, Mattos C Structure. 2004 Nov;12(11):2025-36. PMID:15530367^[1]

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

References

↑ Nicely NI, Kosak J, de Serrano V, Mattos C. Crystal structures of Ral-GppNHp and Ral-GDP reveal two binding sites that are also present in Ras and Rap. Structure. 2004 Nov;12(11):2025-36. PMID:15530367 doi:10.1016/j.str.2004.08.011

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1u90"

@@ Line 2: / Line 2: @@
 <StructureSection load='1u90' size='340' side='right' caption='[[1u90]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1u90]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Saguinus_oedipus Saguinus oedipus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U90 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1U90 FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1u90]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Cotton-top_tamarin Cotton-top tamarin]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U90 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1U90 FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1u8y|1u8y]], [[1u8z|1u8z]]</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Rala, Ral-a, Ral ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9490 Saguinus oedipus])</td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Rala, Ral-a, Ral ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9490 Cotton-top tamarin])</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=1u90 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u90 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1u90 RCSB], [http://www.ebi.ac.uk/pdbsum/1u90 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=1u90 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u90 OCA], [http://pdbe.org/1u90 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1u90 RCSB], [http://www.ebi.ac.uk/pdbsum/1u90 PDBsum]</span></td></tr>
 </table>
 == Function ==
@@ Line 28: / Line 28: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1u90" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Saguinus oedipus]]
+[[Category: Cotton-top tamarin]]
 [[Category: Kosak, J]]
 [[Category: Mattos, C]]

1u90

From Proteopedia

Revision as of 21:49, 10 September 2015

Crystal structures of Ral-GppNHp and Ral-GDP reveal two novel binding sites that are also present in Ras and Rap

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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