View source for 8sm0


==Crystal structure of human complement receptor 2 (CD21) in complex with Epstein-Barr virus major glycoprotein gp350==
<StructureSection load='8sm0' size='340' side='right'caption='[[8sm0]], [[Resolution|resolution]] 1.68&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8sm0]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Human_herpesvirus_4_strain_B95-8 Human herpesvirus 4 strain B95-8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8SM0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8SM0 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.68&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=8sm0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8sm0 OCA], [https://pdbe.org/8sm0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8sm0 RCSB], [https://www.ebi.ac.uk/pdbsum/8sm0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8sm0 ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/CR2_HUMAN CR2_HUMAN] Genetic variations in CR2 are associated with susceptibility to systemic lupus erythematosus type 9 (SLEB9) [MIM:[https://omim.org/entry/610927 610927]. Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with a complex genetic basis. SLE is an inflammatory, and often febrile multisystemic disorder of connective tissue characterized principally by involvement of the skin, joints, kidneys, and serosal membranes. It is thought to represent a failure of the regulatory mechanisms of the autoimmune system.<ref>PMID:17360460</ref>   Defects in CR2 are the cause of immunodeficiency, common variable, type 7 (CVID7) [MIM:[https://omim.org/entry/614699 614699]. A primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B cells is usually in the normal range, but can be low.<ref>PMID:22035880</ref> 
== Function ==
[https://www.uniprot.org/uniprot/CR2_HUMAN CR2_HUMAN] Receptor for complement C3Dd, for the Epstein-Barr virus on human B-cells and T-cells and for HNRPU. Participates in B lymphocytes activation.<ref>PMID:7753047</ref> 
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Human herpesvirus 4 strain B95-8]]
[[Category: Large Structures]]
[[Category: Bu W]]
[[Category: Chen W-H]]
[[Category: Cohen JI]]
[[Category: Joyce MG]]
[[Category: Kanekiyo M]]