View source for 1ypq


==Human Oxidized Low Density Lipoprotein Receptor LOX-1 Dioxane Complex==
<StructureSection load='1ypq' size='340' side='right'caption='[[1ypq]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1ypq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1YPQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1YPQ FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=DIO:1,4-DIETHYLENE+DIOXIDE'>DIO</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1ypu|1ypu]], [[1ypo|1ypo]]</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ypq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ypq OCA], [http://pdbe.org/1ypq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1ypq RCSB], [http://www.ebi.ac.uk/pdbsum/1ypq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1ypq ProSAT]</span></td></tr>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/OLR1_HUMAN OLR1_HUMAN]] Note=Independent association genetic studies have implicated OLR1 gene variants in myocardial infarction susceptibility.<ref>PMID:12384789</ref> <ref>PMID:12807963</ref> <ref>PMID:15060104</ref> <ref>PMID:15276231</ref> <ref>PMID:15860461</ref>   Note=OLR1 may be involved in Alzheimer disease (AD). Involvement in AD is however unclear: according to some authors (PubMed:12354387, PubMed:12810610 and PubMed:15976314), variations in OLR1 modify the risk of AD, while according to other (PubMed:15000751 and PubMed:15060104) they do not.<ref>PMID:12384789</ref> <ref>PMID:12807963</ref> <ref>PMID:15060104</ref> <ref>PMID:15276231</ref> <ref>PMID:15860461</ref>  
== Function ==
[[http://www.uniprot.org/uniprot/OLR1_HUMAN OLR1_HUMAN]] Receptor that mediates the recognition, internalization and degradation of oxidatively modified low density lipoprotein (oxLDL) by vascular endothelial cells. OxLDL is a marker of atherosclerosis that induces vascular endothelial cell activation and dysfunction, resulting in pro-inflammatory responses, pro-oxidative conditions and apoptosis. Its association with oxLDL induces the activation of NF-kappa-B through an increased production of intracellular reactive oxygen and a variety of pro-atherogenic cellular responses including a reduction of nitric oxide (NO) release, monocyte adhesion and apoptosis. In addition to binding oxLDL, it acts as a receptor for the HSP70 protein involved in antigen cross-presentation to naive T-cells in dendritic cells, thereby participating in cell-mediated antigen cross-presentation. Also involved in inflammatory process, by acting as a leukocyte-adhesion molecule at the vascular interface in endotoxin-induced inflammation. Also acts as a receptor for advanced glycation end (AGE) products, activated platelets, monocytes, apoptotic cells and both Gram-negative and Gram-positive bacteria.<ref>PMID:9052782</ref> <ref>PMID:11821063</ref> <ref>PMID:12354387</ref>  
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/yp/1ypq_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1ypq ConSurf].
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== Publication Abstract from PubMed ==
The lectin-like oxidized low density lipoprotein receptor-1 (Lox-1) mediates the recognition and internalization of oxidatively modified low density lipoprotein by vascular endothelial cells. This interaction results in a number of pro-atherogenic cellular responses that probably play a significant role in the pathology of atherosclerosis. The 1.4 angstrom crystal structure of the extracellular C-type lectin-like domain of human Lox-1 reveals a heart-shaped homodimer with a ridge of six basic amino acids extending diagonally across the apolar top of Lox-1, a central hydrophobic tunnel that extends through the entire molecule, and an electrostatically neutral patch of 12 charged residues that resides next to the tunnel at each opening. Based on the arrangement of critical binding residues on the Lox-1 structure, we propose a binding mode for the recognition of modified low density lipoprotein and other Lox-1 ligands.

The 1.4 angstrom crystal structure of the human oxidized low density lipoprotein receptor lox-1.,Park H, Adsit FG, Boyington JC J Biol Chem. 2005 Apr 8;280(14):13593-9. Epub 2005 Feb 5. PMID:15695803<ref>PMID:15695803</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1ypq" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Adsit, F G]]
[[Category: Boyington, J C]]
[[Category: Park, H]]
[[Category: C-type lectin like domain]]
[[Category: Ctld]]
[[Category: Immune system]]
[[Category: Lox-1]]
[[Category: Nk cell receptor]]
[[Category: Oxidized low density lipoprotein receptor]]