1uw5

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[[Image:1uw5.png|left|200px]]
 
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{{STRUCTURE_1uw5| PDB=1uw5 | SCENE= }}
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==Structure of PITP-alpha complexed to phosphatidylinositol==
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<StructureSection load='1uw5' size='340' side='right'caption='[[1uw5]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1uw5]] is a 4 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=1UW5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UW5 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]] 2.9&#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=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=PIE:1,2-DIACYL-SN-GLYCERO-3-PHOSPHOINOSITOL'>PIE</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=1uw5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uw5 OCA], [https://pdbe.org/1uw5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uw5 RCSB], [https://www.ebi.ac.uk/pdbsum/1uw5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uw5 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PIPNA_HUMAN PIPNA_HUMAN] Catalyzes the transfer of PtdIns and phosphatidylcholine between membranes.
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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/uw/1uw5_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=1uw5 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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Phosphatidylinositol transfer protein alpha (PITPalpha) selectively transports and promotes exchange of phosphatidylinositol (PI) and phosphatidylcholine (PC) between lipid bilayers. In higher eukaryotes PITPalpha is required for cellular functions such as phospholipase C-mediated signaling, regulated exocytosis, and secretory vesicle formation. We have determined the crystal structure of human PITPalpha bound to its physiological ligand, PI, at 2.95 A resolution. The structure identifies the critical side chains within the lipid-headgroup binding pocket that define the exquisite specificity for PI. Mutational analysis of the PI binding pocket is in good agreement with the structural data and allows manipulation of functional properties of PITPalpha. Surprisingly, there are no major conformational differences between PI- and PC-loaded PITPalpha, despite previous predictions. In the crystal, PITPalpha-PI is dimeric, with two identical dimers in the asymmetric unit. The dimer interface masks precisely the sequence we identify as contributing to PITPalpha membrane interaction. Our structure represents a soluble, transport-competent form of PI-loaded PITPalpha.
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===STRUCTURE OF PITP-ALPHA COMPLEXED TO PHOSPHATIDYLINOSITOL===
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Structure-function analysis of human [corrected] phosphatidylinositol transfer protein alpha bound to phosphatidylinositol.,Tilley SJ, Skippen A, Murray-Rust J, Swigart PM, Stewart A, Morgan CP, Cockcroft S, McDonald NQ Structure. 2004 Feb;12(2):317-26. PMID:14962392<ref>PMID:14962392</ref>
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{{ABSTRACT_PUBMED_14962392}}
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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 1uw5" style="background-color:#fffaf0;"></div>
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[[1uw5]] is a 4 chain structure with sequence 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=1UW5 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:014962392</ref><references group="xtra"/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Cockcroft, S.]]
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[[Category: Large Structures]]
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[[Category: Mcdonald, N Q.]]
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[[Category: Cockcroft S]]
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[[Category: Murray-Rust, J.]]
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[[Category: McDonald NQ]]
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[[Category: Skippen, A.]]
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[[Category: Murray-Rust J]]
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[[Category: Tilley, S J.]]
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[[Category: Skippen A]]
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[[Category: Lipid-binding]]
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[[Category: Tilley SJ]]
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[[Category: Transfer protein]]
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[[Category: Transport]]
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Current revision

Structure of PITP-alpha complexed to phosphatidylinositol

PDB ID 1uw5

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