1jxo

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(New page: 200px<br /><applet load="1jxo" size="450" color="white" frame="true" align="right" spinBox="true" caption="1jxo, resolution 2.30&Aring;" /> '''Crystal Structure of...)
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[[Image:1jxo.jpg|left|200px]]<br /><applet load="1jxo" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1jxo, resolution 2.30&Aring;" />
 
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'''Crystal Structure of the SH3-HOOK-GK Fragment of PSD-95'''<br />
 
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==Overview==
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==Crystal Structure of the SH3-HOOK-GK Fragment of PSD-95==
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PSD-95/SAP90 is a member of the MAGUK superfamily. In excitatory synapses, PSD-95 clusters receptors and ion channels at specific sites in the, postsynaptic membrane and organizes downstream signaling and cytoskeletal, molecules. We have determined the crystal structures of the apo and, GMP-bound forms to 2.3 and 2.0 A resolutions, respectively, of a fragment, containing the SH3, HOOK, and guanylate kinase (GK) domains of PSD-95. We, observe an intramolecular interaction between the SH3 and GK domains, involving the formation of a beta sheet including residues N- and, C-terminal to the GK domain. Based on amino acid conservation and, mutational data available in the literature, we propose that this, intramolecular interaction is a common feature among MAGUK proteins.
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<StructureSection load='1jxo' size='340' side='right'caption='[[1jxo]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1jxo]] 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=1JXO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JXO 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]] 2.3&#8491;</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=1jxo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jxo OCA], [https://pdbe.org/1jxo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1jxo RCSB], [https://www.ebi.ac.uk/pdbsum/1jxo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1jxo ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/DLG4_RAT DLG4_RAT] Interacts with the cytoplasmic tail of NMDA receptor subunits and shaker-type potassium channels. Required for synaptic plasticity associated with NMDA receptor signaling. Overexpression or depletion of DLG4 changes the ratio of excitatory to inhibitory synapses in hippocampal neurons. May reduce the amplitude of ASIC3 acid-evoked currents by retaining the channel intracellularly. May regulate the intracellular trafficking of ADR1B.<ref>PMID:15317815</ref> <ref>PMID:15358863</ref>
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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/jx/1jxo_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=1jxo 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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PSD-95/SAP90 is a member of the MAGUK superfamily. In excitatory synapses, PSD-95 clusters receptors and ion channels at specific sites in the postsynaptic membrane and organizes downstream signaling and cytoskeletal molecules. We have determined the crystal structures of the apo and GMP-bound forms to 2.3 and 2.0 A resolutions, respectively, of a fragment containing the SH3, HOOK, and guanylate kinase (GK) domains of PSD-95. We observe an intramolecular interaction between the SH3 and GK domains involving the formation of a beta sheet including residues N- and C-terminal to the GK domain. Based on amino acid conservation and mutational data available in the literature, we propose that this intramolecular interaction is a common feature among MAGUK proteins.
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==About this Structure==
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Structural characterization of the intramolecular interaction between the SH3 and guanylate kinase domains of PSD-95.,Tavares GA, Panepucci EH, Brunger AT Mol Cell. 2001 Dec;8(6):1313-25. PMID:11779506<ref>PMID:11779506</ref>
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1JXO is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1JXO 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 characterization of the intramolecular interaction between the SH3 and guanylate kinase domains of PSD-95., Tavares GA, Panepucci EH, Brunger AT, Mol Cell. 2001 Dec;8(6):1313-25. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11779506 11779506]
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</div>
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[[Category: Rattus norvegicus]]
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<div class="pdbe-citations 1jxo" style="background-color:#fffaf0;"></div>
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[[Category: Single protein]]
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[[Category: Brunger, A.T.]]
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[[Category: Panepucci, E.H.]]
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[[Category: Tavares, G.A.]]
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[[Category: guanylate kinase domain]]
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[[Category: maguk]]
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[[Category: postsynaptic density]]
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[[Category: sh3 domain]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Nov 20 18:40:18 2007''
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==See Also==
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*[[Postsynaptic density protein 3D structures|Postsynaptic density protein 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: Panepucci EH]]
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[[Category: Tavares GA]]

Current revision

Crystal Structure of the SH3-HOOK-GK Fragment of PSD-95

PDB ID 1jxo

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