1uex

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==Crystal structure of von Willebrand Factor A1 domain complexed with snake venom bitiscetin==
==Crystal structure of von Willebrand Factor A1 domain complexed with snake venom bitiscetin==
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<StructureSection load='1uex' size='340' side='right' caption='[[1uex]], [[Resolution|resolution]] 2.85&Aring;' scene=''>
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<StructureSection load='1uex' size='340' side='right'caption='[[1uex]], [[Resolution|resolution]] 2.85&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[1uex]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Bitis_arietans Bitis arietans] and [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UEX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1UEX FirstGlance]. <br>
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<table><tr><td colspan='2'>[[1uex]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Bitis_arietans Bitis arietans] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1UEX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1UEX FirstGlance]. <br>
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</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1jwi|1jwi]], [[1auq|1auq]]</td></tr>
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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]] 2.85&#8491;</td></tr>
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<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=1uex FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uex OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1uex RCSB], [http://www.ebi.ac.uk/pdbsum/1uex PDBsum]</span></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=1uex FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1uex OCA], [https://pdbe.org/1uex PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1uex RCSB], [https://www.ebi.ac.uk/pdbsum/1uex PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1uex ProSAT]</span></td></tr>
</table>
</table>
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== Disease ==
 
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[[http://www.uniprot.org/uniprot/VWF_HUMAN VWF_HUMAN]] Defects in VWF are the cause of von Willebrand disease type 1 (VWD1) [MIM:[http://omim.org/entry/193400 193400]]. A common hemorrhagic disorder due to defects in von Willebrand factor protein and resulting in impaired platelet aggregation. Von Willebrand disease type 1 is characterized by partial quantitative deficiency of circulating von Willebrand factor, that is otherwise structurally and functionally normal. Clinical manifestations are mucocutaneous bleeding, such as epistaxis and menorrhagia, and prolonged bleeding after surgery or trauma.<ref>PMID:10887119</ref> <ref>PMID:11698279</ref> Defects in VWF are the cause of von Willebrand disease type 2 (VWD2) [MIM:[http://omim.org/entry/613554 613554]]. A hemorrhagic disorder due to defects in von Willebrand factor protein and resulting in impaired platelet aggregation. Von Willebrand disease type 2 is characterized by qualitative deficiency and functional anomalies of von Willebrand factor. It is divided in different subtypes including 2A, 2B, 2M and 2N (Normandy variant). The mutant VWF protein in types 2A, 2B and 2M are defective in their platelet-dependent function, whereas the mutant protein in type 2N is defective in its ability to bind factor VIII. Clinical manifestations are mucocutaneous bleeding, such as epistaxis and menorrhagia, and prolonged bleeding after surgery or trauma. Defects in VWF are the cause of von Willebrand disease type 3 (VWD3) [MIM:[http://omim.org/entry/277480 277480]]. A severe hemorrhagic disorder due to a total or near total absence of von Willebrand factor in the plasma and cellular compartments, also leading to a profound deficiency of plasmatic factor VIII. Bleeding usually starts in infancy and can include epistaxis, recurrent mucocutaneous bleeding, excessive bleeding after minor trauma, and hemarthroses.
 
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/VWF_HUMAN VWF_HUMAN]] Important in the maintenance of hemostasis, it promotes adhesion of platelets to the sites of vascular injury by forming a molecular bridge between sub-endothelial collagen matrix and platelet-surface receptor complex GPIb-IX-V. Also acts as a chaperone for coagulation factor VIII, delivering it to the site of injury, stabilizing its heterodimeric structure and protecting it from premature clearance from plasma.
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[https://www.uniprot.org/uniprot/SLA_BITAR SLA_BITAR] Snaclec that binds to von Willebrand factor (VWF) and induces its interaction with GPIbalpha (GP1BA) (via the vWF A1 domain), resulting in platelet aggregation.<ref>PMID:12069583</ref> <ref>PMID:8806626</ref>
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ue/1uex_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ue/1uex_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
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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=1uex ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 1uex" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
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[[Category: Bitis arietans]]
[[Category: Bitis arietans]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Maita, N]]
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[[Category: Large Structures]]
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[[Category: Matsui, T]]
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[[Category: Maita N]]
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[[Category: Mizuno, H]]
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[[Category: Matsui T]]
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[[Category: Morita, T]]
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[[Category: Mizuno H]]
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[[Category: Nishimoto, E]]
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[[Category: Morita T]]
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[[Category: Nishio, K]]
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[[Category: Nishimoto E]]
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[[Category: Sadler, J E]]
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[[Category: Nishio K]]
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[[Category: Shikamoto, Y]]
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[[Category: Sadler JE]]
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[[Category: C-type lectin heterodimer]]
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[[Category: Shikamoto Y]]
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[[Category: Toxin-blood clotting complex]]
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Current revision

Crystal structure of von Willebrand Factor A1 domain complexed with snake venom bitiscetin

PDB ID 1uex

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