1x79

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[[Image:1x79.gif|left|200px]]
 
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{{Structure
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==Crystal structure of human GGA1 GAT domain complexed with the GAT-binding domain of Rabaptin5==
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|PDB= 1x79 |SIZE=350|CAPTION= <scene name='initialview01'>1x79</scene>, resolution 2.41&Aring;
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<StructureSection load='1x79' size='340' side='right'caption='[[1x79]], [[Resolution|resolution]] 2.41&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene> and <scene name='pdbligand=DTT:2,3-DIHYDROXY-1,4-DITHIOBUTANE'>DTT</scene>
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<table><tr><td colspan='2'>[[1x79]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X79 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1X79 FirstGlance]. <br>
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|ACTIVITY=
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.41&#8491;</td></tr>
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|GENE= GGA1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), RABEP1, RABPT5, RABPT5A ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DTT:2,3-DIHYDROXY-1,4-DITHIOBUTANE'>DTT</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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}}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1x79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1x79 OCA], [https://pdbe.org/1x79 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1x79 RCSB], [https://www.ebi.ac.uk/pdbsum/1x79 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1x79 ProSAT]</span></td></tr>
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</table>
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'''Crystal structure of human GGA1 GAT domain complexed with the GAT-binding domain of Rabaptin5'''
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== Function ==
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[https://www.uniprot.org/uniprot/GGA1_HUMAN GGA1_HUMAN] Plays a role in protein sorting and trafficking between the trans-Golgi network (TGN) and endosomes. Mediates the ARF-dependent recruitment of clathrin to the TGN and binds ubiquitinated proteins and membrane cargo molecules with a cytosolic acidic cluster-dileucine (AC-LL) motif.<ref>PMID:11301005</ref>
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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GGA proteins coordinate the intracellular trafficking of clathrin-coated vesicles through their interaction with several other proteins. The GAT domain of GGA proteins interacts with ARF, ubiquitin, and Rabaptin5. The GGA-Rabaptin5 interaction is believed to function in the fusion of trans-Golgi-derived vesicles to endosomes. We determined the crystal structure of a human GGA1 GAT domain fragment in complex with the Rabaptin5 GAT-binding domain. In this structure, the Rabaptin5 domain is a 90-residue-long helix. At the N-terminal end, it forms a parallel coiled-coil homodimer, which binds one GAT domain of GGA1. In the C-terminal region, it further assembles into a four-helix bundle tetramer. The Rabaptin5-binding motif of the GGA1 GAT domain consists of a three-helix bundle. Thus, the binding between Rabaptin5 and GGA1 GAT domain is based on a helix bundle-helix bundle interaction. The current structural observation is consistent with previously reported mutagenesis data, and its biological relevance is further confirmed by new mutagenesis studies and affinity analysis. The four-helix bundle structure of Rabaptin5 suggests a functional role in tethering organelles.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/x7/1x79_consurf.spt"</scriptWhenChecked>
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1X79 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1X79 OCA].
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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==Reference==
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</jmolCheckbox>
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Crystal structure of human GGA1 GAT domain complexed with the GAT-binding domain of Rabaptin5., Zhu G, Zhai P, He X, Wakeham N, Rodgers K, Li G, Tang J, Zhang XC, EMBO J. 2004 Oct 13;23(20):3909-17. Epub 2004 Sep 30. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15457209 15457209]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1x79 ConSurf].
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Zhang, X C.]]
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[[Category: Zhang XC]]
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[[Category: Zhu, G.]]
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[[Category: Zhu G]]
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[[Category: DTT]]
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[[Category: SO4]]
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[[Category: gat domain]]
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[[Category: gga protein]]
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[[Category: intracellular trafficking]]
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[[Category: rabaptin5]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:05:57 2008''
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Current revision

Crystal structure of human GGA1 GAT domain complexed with the GAT-binding domain of Rabaptin5

PDB ID 1x79

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