1xph

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[[Image:1xph.png|left|200px]]
 
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{{STRUCTURE_1xph| PDB=1xph | SCENE= }}
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==Structure of DC-SIGNR and a portion of repeat domain 8==
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<StructureSection load='1xph' size='340' side='right'caption='[[1xph]], [[Resolution|resolution]] 1.41&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1xph]] is a 1 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=1XPH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1XPH 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]] 1.41&#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></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=1xph FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1xph OCA], [https://pdbe.org/1xph PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1xph RCSB], [https://www.ebi.ac.uk/pdbsum/1xph PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1xph ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CLC4M_HUMAN CLC4M_HUMAN] Probable pathogen-recognition receptor involved in peripheral immune surveillance in liver. May mediate the endocytosis of pathogens which are subsequently degraded in lysosomal compartments. Probably recognizes in a calcium-dependent manner high mannose N-linked oligosaccharides in a variety of pathogen antigens, including HIV-1 gp120, HIV-2 gp120, SIV gp120, ebolavirus glycoproteins, HCV E2, and human SARS coronavirus protein S. Is a receptor for ICAM3, probably by binding to mannose-like carbohydrates. Is presumably a coreceptor for the SARS coronavirus.<ref>PMID:11257134</ref> <ref>PMID:11226297</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/xp/1xph_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=1xph 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 dendritic cell-specific ICAM-3 non-integrin (DC-SIGN) and its close relative DC-SIGNR recognize various glycoproteins, both pathogenic and cellular, through the receptor lectin domain-mediated carbohydrate recognition. While the carbohydrate-recognition domains (CRD) exist as monomers and bind individual carbohydrates with low affinity and are permissive in nature, the full-length receptors form tetramers through their repeat domain and recognize specific ligands with high affinity. To understand the tetramer-based ligand binding avidity, we determined the crystal structure of DC-SIGNR with its last repeat region. Compared to the carbohydrate-bound CRD structure, the structure revealed conformational changes in the calcium and carbohydrate coordination loops of CRD, an additional disulfide bond between the N and the C termini of the CRD, and a helical conformation for the last repeat. On the basis of the current crystal structure and other published structures with sequence homology to the repeat domain, we generated a tetramer model for DC-SIGN/R using homology modeling and propose a ligand-recognition index to identify potential receptor ligands.
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===Structure of DC-SIGNR and a portion of repeat domain 8===
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The structure of DC-SIGNR with a portion of its repeat domain lends insights to modeling of the receptor tetramer.,Snyder GA, Colonna M, Sun PD J Mol Biol. 2005 Apr 15;347(5):979-89. PMID:15784257<ref>PMID:15784257</ref>
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{{ABSTRACT_PUBMED_15784257}}
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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 1xph" style="background-color:#fffaf0;"></div>
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[[1xph]] is a 1 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=1XPH 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:015784257</ref><references group="xtra"/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Colonna, M.]]
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[[Category: Large Structures]]
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[[Category: Snyder, G A.]]
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[[Category: Colonna M]]
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[[Category: Sun, P D.]]
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[[Category: Snyder GA]]
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[[Category: C-type lectin]]
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[[Category: Sun PD]]
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[[Category: Carbohydrate recognition domain]]
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[[Category: Immune system]]
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[[Category: Repeat domain]]
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[[Category: Sugar binding protein]]
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Current revision

Structure of DC-SIGNR and a portion of repeat domain 8

PDB ID 1xph

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