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1zbd

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(New page: 200px<br /><applet load="1zbd" size="450" color="white" frame="true" align="right" spinBox="true" caption="1zbd, resolution 2.6&Aring;" /> '''STRUCTURAL BASIS OF R...)
Current revision (08:10, 15 May 2024) (edit) (undo)
 
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[[Image:1zbd.gif|left|200px]]<br /><applet load="1zbd" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1zbd, resolution 2.6&Aring;" />
 
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'''STRUCTURAL BASIS OF RAB EFFECTOR SPECIFICITY: CRYSTAL STRUCTURE OF THE SMALL G PROTEIN RAB3A COMPLEXED WITH THE EFFECTOR DOMAIN OF RABPHILIN-3A'''<br />
 
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==Overview==
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==STRUCTURAL BASIS OF RAB EFFECTOR SPECIFICITY: CRYSTAL STRUCTURE OF THE SMALL G PROTEIN RAB3A COMPLEXED WITH THE EFFECTOR DOMAIN OF RABPHILIN-3A==
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The small G protein Rab3A plays an important role in the regulation of, neurotransmitter release. The crystal structure of activated, Rab3A/GTP/Mg2+ bound to the effector domain of rabphilin-3A was solved to, 2.6 A resolution. Rabphilin-3A contacts Rab3A in two distinct areas. The, first interface involves the Rab3A switch I and switch II regions, which, are sensitive to the nucleotide-binding state of Rab3A. The second, interface consists of a deep pocket in Rab3A that interacts with a SGAWFF, structural element of rabphilin-3A. Sequence and structure analysis, and, biochemical data suggest that this pocket, or Rab, complementarity-determining region (RabCDR), establishes a specific, interaction between each Rab protein and its effectors. RabCDRs could be, major determinants of effector specificity during vesicle trafficking and, fusion.
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<StructureSection load='1zbd' size='340' side='right'caption='[[1zbd]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1zbd]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZBD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZBD FirstGlance]. <br>
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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]] 2.6&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
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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=1zbd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zbd OCA], [https://pdbe.org/1zbd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zbd RCSB], [https://www.ebi.ac.uk/pdbsum/1zbd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zbd ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/RAB3A_RAT RAB3A_RAT] Involved in exocytosis by regulating a late step in synaptic vesicle fusion. Could play a role in neurotransmitter release by regulating membrane flow in the nerve terminal (By similarity).
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zb/1zbd_consurf.spt"</scriptWhenChecked>
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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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</jmolCheckbox>
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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=1zbd ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The small G protein Rab3A plays an important role in the regulation of neurotransmitter release. The crystal structure of activated Rab3A/GTP/Mg2+ bound to the effector domain of rabphilin-3A was solved to 2.6 A resolution. Rabphilin-3A contacts Rab3A in two distinct areas. The first interface involves the Rab3A switch I and switch II regions, which are sensitive to the nucleotide-binding state of Rab3A. The second interface consists of a deep pocket in Rab3A that interacts with a SGAWFF structural element of rabphilin-3A. Sequence and structure analysis, and biochemical data suggest that this pocket, or Rab complementarity-determining region (RabCDR), establishes a specific interaction between each Rab protein and its effectors. RabCDRs could be major determinants of effector specificity during vesicle trafficking and fusion.
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==About this Structure==
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Structural basis of Rab effector specificity: crystal structure of the small G protein Rab3A complexed with the effector domain of rabphilin-3A.,Ostermeier C, Brunger AT Cell. 1999 Feb 5;96(3):363-74. PMID:10025402<ref>PMID:10025402</ref>
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1ZBD is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus] with ZN, MG and GTP as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1ZBD OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Structural basis of Rab effector specificity: crystal structure of the small G protein Rab3A complexed with the effector domain of rabphilin-3A., Ostermeier C, Brunger AT, Cell. 1999 Feb 5;96(3):363-74. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10025402 10025402]
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</div>
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[[Category: Protein complex]]
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<div class="pdbe-citations 1zbd" style="background-color:#fffaf0;"></div>
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[[Category: Rattus norvegicus]]
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[[Category: Brunger, A.T.]]
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[[Category: Ostermeier, C.]]
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[[Category: GTP]]
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[[Category: MG]]
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[[Category: ZN]]
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[[Category: effector]]
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[[Category: g protein]]
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[[Category: rab protein]]
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[[Category: rab3a]]
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[[Category: rabcdr]]
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[[Category: rabphilin]]
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[[Category: synaptic exocytosis]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 07:21:49 2007''
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==See Also==
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*[[Exophilin 3D structures|Exophilin 3D structures]]
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*[[Rabphilin|Rabphilin]]
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*[[Ras-related protein Rab 3D structures|Ras-related protein Rab 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Rattus norvegicus]]
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[[Category: Brunger AT]]
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[[Category: Ostermeier C]]

Current revision

STRUCTURAL BASIS OF RAB EFFECTOR SPECIFICITY: CRYSTAL STRUCTURE OF THE SMALL G PROTEIN RAB3A COMPLEXED WITH THE EFFECTOR DOMAIN OF RABPHILIN-3A

PDB ID 1zbd

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