3c22: Difference between revisions
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==Crystal structure of the carbohydrate recognition domain of human Langerin== | ==Crystal structure of the carbohydrate recognition domain of human Langerin== | ||
<StructureSection load='3c22' size='340' side='right' caption='[[3c22]], [[Resolution|resolution]] 1.50Å' scene=''> | <StructureSection load='3c22' size='340' side='right'caption='[[3c22]], [[Resolution|resolution]] 1.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3c22]] is a 4 chain structure with sequence from [ | <table><tr><td colspan='2'>[[3c22]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C22 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3C22 FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr> | </td></tr><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=MG:MAGNESIUM+ION'>MG</scene></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD207 ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD207 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3c22 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3c22 OCA], [https://pdbe.org/3c22 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3c22 RCSB], [https://www.ebi.ac.uk/pdbsum/3c22 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3c22 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Disease == | == Disease == | ||
[[ | [[https://www.uniprot.org/uniprot/CLC4K_HUMAN CLC4K_HUMAN]] Defects in CD207 are the cause of Birbeck granule deficiency (BIRGD) [MIM:[https://omim.org/entry/613393 613393]]. It is a condition characterized by the absence of Birbeck granules in epidermal Langerhans cells. Despite the lack of Birbeck granules Langerhans cells are present in normal numbers and have normal morphologic characteristics and antigen-presenting capacity.<ref>PMID:15816828</ref> <ref>PMID:16567809</ref> | ||
== Function == | == Function == | ||
[[ | [[https://www.uniprot.org/uniprot/CLC4K_HUMAN CLC4K_HUMAN]] Calcium-dependent lectin displaying mannose-binding specificity. Induces the formation of Birbeck granules (BGs); is a potent regulator of membrane superimposition and zippering. Binds to sulfated as well as mannosylated glycans, keratan sulfate (KS) and beta-glucans. Facilitates uptake of antigens and is involved in the routing and/or processing of antigen for presentation to T cells. Major receptor on primary Langerhans cells for Candida species, Saccharomyces species, and Malassezia furfur. Protects against human immunodeficiency virus-1 (HIV-1) infection. Binds to high-mannose structures present on the envelope glycoprotein which is followed by subsequent targeting of the virus to the Birbeck granules leading to its rapid degradation.<ref>PMID:10661407</ref> <ref>PMID:17334373</ref> <ref>PMID:20026605</ref> <ref>PMID:20097424</ref> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Large Structures]] | |||
[[Category: Thepaut, M]] | [[Category: Thepaut, M]] | ||
[[Category: C-type lectin domain]] | [[Category: C-type lectin domain]] |