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| | <StructureSection load='1u90' size='340' side='right'caption='[[1u90]], [[Resolution|resolution]] 2.00Å' scene=''> | | <StructureSection load='1u90' size='340' side='right'caption='[[1u90]], [[Resolution|resolution]] 2.00Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <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://proteopedia.org/fgij/fg.htm?mol=1U90 FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[1u90]] is a 2 chain structure with sequence from [https://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 [https://proteopedia.org/fgij/fg.htm?mol=1U90 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1u8y|1u8y]], [[1u8z|1u8z]]</div></td></tr> | + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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'>[https://proteopedia.org/fgij/fg.htm?mol=1u90 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1u90 OCA], [https://pdbe.org/1u90 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1u90 RCSB], [https://www.ebi.ac.uk/pdbsum/1u90 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1u90 ProSAT]</span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/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], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1u90 ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/RALA_SAGOE 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). | + | [https://www.uniprot.org/uniprot/RALA_SAGOE 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 == | | == Evolutionary Conservation == |
| | [[Image:Consurf_key_small.gif|200px|right]] | | [[Image:Consurf_key_small.gif|200px|right]] |
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| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Cotton-top tamarin]] | |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| - | [[Category: Kosak, J]] | + | [[Category: Saguinus oedipus]] |
| - | [[Category: Mattos, C]] | + | [[Category: Kosak J]] |
| - | [[Category: Nicely, N I]] | + | [[Category: Mattos C]] |
| - | [[Category: Serrano, V de]] | + | [[Category: Nicely NI]] |
| - | [[Category: Gdp]]
| + | [[Category: De Serrano V]] |
| - | [[Category: Gmppnp]]
| + | |
| - | [[Category: Gnp]]
| + | |
| - | [[Category: Gppnhp]]
| + | |
| - | [[Category: Gtp]]
| + | |
| - | [[Category: Gtpase]]
| + | |
| - | [[Category: Ra]]
| + | |
| - | [[Category: Ral]]
| + | |
| - | [[Category: Signaling protein]]
| + | |
| Structural highlights
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
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