1u90

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[[Image:1u90.jpg|left|200px]]<br /><applet load="1u90" size="350" color="white" frame="true" align="right" spinBox="true"
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[[Image:1u90.jpg|left|200px]]
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caption="1u90, resolution 2.00&Aring;" />
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'''Crystal structures of Ral-GppNHp and Ral-GDP reveal two novel binding sites that are also present in Ras and Rap'''<br />
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{{Structure
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|PDB= 1u90 |SIZE=350|CAPTION= <scene name='initialview01'>1u90</scene>, resolution 2.00&Aring;
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|SITE=
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|LIGAND= <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene> and <scene name='pdbligand=GDP:GUANOSINE-5'-DIPHOSPHATE'>GDP</scene>
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|ACTIVITY=
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|GENE= Rala, Ral-a, Ral ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9490 Saguinus oedipus])
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}}
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'''Crystal structures of Ral-GppNHp and Ral-GDP reveal two novel binding sites that are also present in Ras and Rap'''
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==Overview==
==Overview==
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==About this Structure==
==About this Structure==
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1U90 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Saguinus_oedipus Saguinus oedipus] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=GDP:'>GDP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1U90 OCA].
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1U90 is a [[Single protein]] structure of 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].
==Reference==
==Reference==
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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:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=15530367 15530367]
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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:[http://www.ncbi.nlm.nih.gov/pubmed/15530367 15530367]
[[Category: Saguinus oedipus]]
[[Category: Saguinus oedipus]]
[[Category: Single protein]]
[[Category: Single protein]]
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[[Category: gtpase]]
[[Category: gtpase]]
[[Category: ral]]
[[Category: ral]]
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[[Category: ras]]
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[[Category: ra]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Feb 21 15:21:52 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:28:53 2008''

Revision as of 12:28, 20 March 2008


PDB ID 1u90

Drag the structure with the mouse to rotate
, resolution 2.00Å
Ligands: and
Gene: Rala, Ral-a, Ral (Saguinus oedipus)
Coordinates: save as pdb, mmCIF, xml



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


Overview

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.

About this Structure

1U90 is a Single protein structure of sequence from Saguinus oedipus. Full crystallographic information is available from OCA.

Reference

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

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