2ox9

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(New page: 200px<br /><applet load="2ox9" size="350" color="white" frame="true" align="right" spinBox="true" caption="2ox9, resolution 1.95&Aring;" /> '''Mouse Scavenger Rece...)
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[[Image:2ox9.jpg|left|200px]]<br /><applet load="2ox9" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2ox9, resolution 1.95&Aring;" />
 
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'''Mouse Scavenger Receptor C-type Lectin carbohydrate-recognition domain.'''<br />
 
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==Overview==
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==Mouse Scavenger Receptor C-type Lectin carbohydrate-recognition domain.==
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The scavenger receptor C-type lectin (SRCL) is unique in the family of, class A scavenger receptors, because in addition to binding sites for, oxidized lipoproteins it also contains a C-type carbohydrate-recognition, domain (CRD) that interacts with specific glycans. Both human and mouse, SRCL are highly specific for the Lewis(x) trisaccharide, which is commonly, found on the surfaces of leukocytes and some tumor cells. Structural, analysis of the CRD of mouse SRCL in complex with Lewis(x) and mutagenesis, show the basis for this specificity. The interaction between mouse SRCL, and Lewis(x) is analogous to the way that selectins and DC-SIGN bind to, related fucosylated glycans, but the mechanism of the interaction is, novel, because it is based on a primary galactose-binding site similar to, the binding site in the asialoglycoprotein receptor. Crystals of the human, receptor lacking bound calcium ions reveal an alternative conformation in, which a glycan ligand would be released during receptor-mediated, endocytosis.
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<StructureSection load='2ox9' size='340' side='right'caption='[[2ox9]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2ox9]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OX9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2OX9 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]] 1.95&#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=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PRD_900119:Lewis+X+antigen,+beta+anomer'>PRD_900119</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=2ox9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ox9 OCA], [https://pdbe.org/2ox9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ox9 RCSB], [https://www.ebi.ac.uk/pdbsum/2ox9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ox9 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/COL12_MOUSE COL12_MOUSE] Scavenger receptor that displays several functions associated with host defense. Promotes binding and phagocytosis of Gram-positive, Gram-negative bacteria and yeast. Binds also to sialyl Lewis X or a trisaccharide and asialo-orosomucoid (ASOR). Mediates the recognition, internalization and degradation of oxidatively modified low density lipoprotein (oxLDL) by vascular endothelial cells (By similarity). Binds to several carbohydrates including Gal-type ligands, D-galactose, L- and D-fucose, GalNAc, T and Tn antigens in a calcium-dependent manner and internalizes specifically GalNAc in nurse-like cells (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/ox/2ox9_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=2ox9 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 scavenger receptor C-type lectin (SRCL) is unique in the family of class A scavenger receptors, because in addition to binding sites for oxidized lipoproteins it also contains a C-type carbohydrate-recognition domain (CRD) that interacts with specific glycans. Both human and mouse SRCL are highly specific for the Lewis(x) trisaccharide, which is commonly found on the surfaces of leukocytes and some tumor cells. Structural analysis of the CRD of mouse SRCL in complex with Lewis(x) and mutagenesis show the basis for this specificity. The interaction between mouse SRCL and Lewis(x) is analogous to the way that selectins and DC-SIGN bind to related fucosylated glycans, but the mechanism of the interaction is novel, because it is based on a primary galactose-binding site similar to the binding site in the asialoglycoprotein receptor. Crystals of the human receptor lacking bound calcium ions reveal an alternative conformation in which a glycan ligand would be released during receptor-mediated endocytosis.
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==About this Structure==
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Scavenger receptor C-type lectin binds to the leukocyte cell surface glycan Lewis(x) by a novel mechanism.,Feinberg H, Taylor ME, Weis WI J Biol Chem. 2007 Jun 8;282(23):17250-8. Epub 2007 Apr 9. PMID:17420244<ref>PMID:17420244</ref>
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2OX9 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] with <scene name='pdbligand=CA:'>CA</scene> as [http://en.wikipedia.org/wiki/ligand ligand]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2OX9 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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Scavenger receptor C-type lectin binds to the leukocyte cell surface glycan Lewis(x) by a novel mechanism., Feinberg H, Taylor ME, Weis WI, J Biol Chem. 2007 Jun 8;282(23):17250-8. Epub 2007 Apr 9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17420244 17420244]
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</div>
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<div class="pdbe-citations 2ox9" style="background-color:#fffaf0;"></div>
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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]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
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[[Category: Single protein]]
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[[Category: Drickamer K]]
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[[Category: Drickamer, K.]]
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[[Category: Feinberg H]]
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[[Category: Feinberg, H.]]
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[[Category: Taylor ME]]
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[[Category: Taylor, M.E.]]
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[[Category: Weis WI]]
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[[Category: Weis, W.I.]]
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[[Category: CA]]
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[[Category: c-type lectin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 14:43:43 2008''
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Current revision

Mouse Scavenger Receptor C-type Lectin carbohydrate-recognition domain.

PDB ID 2ox9

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