1ihj

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[[Image:1ihj.png|left|200px]]
 
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{{STRUCTURE_1ihj| PDB=1ihj | SCENE= }}
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==Crystal Structure of the N-terminal PDZ domain of InaD in complex with a NorpA C-terminal peptide==
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<StructureSection load='1ihj' size='340' side='right'caption='[[1ihj]], [[Resolution|resolution]] 1.80&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1ihj]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IHJ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1IHJ 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]] 1.8&#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=1ihj FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ihj OCA], [https://pdbe.org/1ihj PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ihj RCSB], [https://www.ebi.ac.uk/pdbsum/1ihj PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ihj ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/INAD_DROME INAD_DROME] Involved in the negative feedback regulation of the light-activated signaling cascade in photoreceptors through a calcium-mediated process. Interacts with tetrapeptide ligand located in C-terminal sequence of 3 key components of the visual cascade, tethering them and forming a macromolecular signaling phototransduction complex.<ref>PMID:7826638</ref> <ref>PMID:11342563</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/ih/1ihj_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=1ihj 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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In Drosophila, phototransduction is mediated by G(q)-activation of phospholipase C and is a well studied model system for understanding the kinetics of signal initiation, propagation and termination controlled by G proteins. The proper intracellular targeting and spatial arrangement of most proteins involved in fly phototransduction require the multi-domain scaffolding protein InaD, composed almost entirely of five PDZ domains, which independently bind various proteins including NorpA, the relevant phospho lipase C-beta isozyme. We have determined the crystal structure of the N-terminal PDZ domain of InaD bound to a peptide corresponding to the C-terminus of NorpA to 1.8 A resolution. The structure highlights an intermolecular disulfide bond necessary for high affinity interaction as determined by both in vitro and in vivo studies. Since other proteins also possess similar, cysteine-containing consensus sequences for binding PDZ domains, this disulfide-mediated 'dock-and-lock' interaction of PDZ domains with their ligands may be a relatively ubiquitous mode of coordinating signaling pathways.
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===Crystal Structure of the N-terminal PDZ domain of InaD in complex with a NorpA C-terminal peptide===
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Functional relevance of the disulfide-linked complex of the N-terminal PDZ domain of InaD with NorpA.,Kimple ME, Siderovski DP, Sondek J EMBO J. 2001 Aug 15;20(16):4414-22. PMID:11500369<ref>PMID:11500369</ref>
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{{ABSTRACT_PUBMED_11500369}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 1ihj" style="background-color:#fffaf0;"></div>
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[[1ihj]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1IHJ OCA].
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== References ==
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<references/>
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==Reference==
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__TOC__
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<ref group="xtra">PMID:011500369</ref><references group="xtra"/>
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</StructureSection>
[[Category: Drosophila melanogaster]]
[[Category: Drosophila melanogaster]]
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[[Category: Phospholipase C]]
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[[Category: Large Structures]]
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[[Category: Kimple, M E.]]
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[[Category: Kimple ME]]
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[[Category: Siderovski, D P.]]
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[[Category: Siderovski DP]]
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[[Category: Sondek, J.]]
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[[Category: Sondek J]]
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[[Category: Intermolecular disulfide bond]]
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[[Category: Pdz domain]]
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[[Category: Signaling protein]]
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Current revision

Crystal Structure of the N-terminal PDZ domain of InaD in complex with a NorpA C-terminal peptide

PDB ID 1ihj

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