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| - | ==Crystal structure at 2.9 Angstroms resolution of human plasma coagulation factor XI zymogen==
| + | #REDIRECT [[6i58]] This PDB entry is obsolete and replaced by 6i58 |
| - | <StructureSection load='2f83' size='340' side='right' caption='[[2f83]], [[Resolution|resolution]] 2.87Å' scene=''>
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| - | == Structural highlights ==
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| - | <table><tr><td colspan='2'>[[2f83]] 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=2F83 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2F83 FirstGlance]. <br>
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| - | </td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PT:PLATINUM+(II)+ION'>PT</scene><br>
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| - | <tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Coagulation_factor_XIa Coagulation factor XIa], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.27 3.4.21.27] </span></td></tr>
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| - | <tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2f83 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2f83 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2f83 RCSB], [http://www.ebi.ac.uk/pdbsum/2f83 PDBsum]</span></td></tr>
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| - | <table>
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| - | == Disease ==
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| - | [[http://www.uniprot.org/uniprot/FA11_HUMAN FA11_HUMAN]] Defects in F11 are the cause of factor XI deficiency (FA11D) [MIM:[http://omim.org/entry/612416 612416]]; also known as plasma thromboplastin antecedent deficiency or Rosenthal syndrome. It is a hemorrhagic disease characterized by reduced levels and activity of factor XI resulting in moderate bleeding symptoms, usually occurring after trauma or surgery. Patients usually do not present spontaneous bleeding but women can present with menorrhagia. Hemorrhages are usually moderate.<ref>PMID:2813350</ref> <ref>PMID:1547342</ref> <ref>PMID:7888672</ref> <ref>PMID:7669672</ref> <ref>PMID:9401068</ref> <ref>PMID:9787168</ref> <ref>PMID:10027710</ref> <ref>PMID:10606881</ref> <ref>PMID:11895778</ref> <ref>PMID:15026311</ref> <ref>PMID:15180874</ref> <ref>PMID:15953011</ref> <ref>PMID:16607084</ref> <ref>PMID:18005151</ref> <ref>PMID:21668437</ref> <ref>PMID:21457405</ref> <ref>PMID:22016685</ref> <ref>PMID:22322133</ref> <ref>PMID:21999818</ref> <ref>PMID:22159456</ref>
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| - | == Function ==
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| - | [[http://www.uniprot.org/uniprot/FA11_HUMAN FA11_HUMAN]] Factor XI triggers the middle phase of the intrinsic pathway of blood coagulation by activating factor IX.
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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/f8/2f83_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/chain_selection.php?pdb_ID=2ata 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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| - | Factor XI (FXI), a coagulation protein essential to normal hemostasis, circulates as a disulfide-linked dimer. Here we report the full-length FXI zymogen crystal structure, revealing that the protease and four apple domains assemble into a unique 'cup and saucer' architecture. The structure shows that the thrombin and platelet glycoprotein Ib binding sites are remote within the monomer but lie in close proximity across the dimer, suggesting a transactivation mechanism.
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| - | Crystal structure of the factor XI zymogen reveals a pathway for transactivation.,Papagrigoriou E, McEwan PA, Walsh PN, Emsley J Nat Struct Mol Biol. 2006 Jun;13(6):557-8. Epub 2006 May 14. PMID:16699514<ref>PMID:16699514</ref>
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div>
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| - | ==See Also==
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| - | *[[Factor XIa|Factor XIa]]
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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: Coagulation factor XIa]]
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| - | [[Category: Homo sapiens]]
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| - | [[Category: Emsley, J.]]
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| - | [[Category: McEwan, P A.]]
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| - | [[Category: Papagrigoriou, E.]]
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| - | [[Category: Walsh, P N.]]
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| - | [[Category: Apple domain]]
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| - | [[Category: Hydrolase]]
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| - | [[Category: Protease]]
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