1p0s

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[[Image:1p0s.jpg|left|200px]]
 
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==Crystal Structure of Blood Coagulation Factor Xa in Complex with Ecotin M84R==
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The line below this paragraph, containing "STRUCTURE_1p0s", creates the "Structure Box" on the page.
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<StructureSection load='1p0s' size='340' side='right'caption='[[1p0s]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1p0s]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] 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=1P0S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1P0S FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.8&#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=CGU:GAMMA-CARBOXY-GLUTAMIC+ACID'>CGU</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr>
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{{STRUCTURE_1p0s| PDB=1p0s | SCENE= }}
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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=1p0s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1p0s OCA], [https://pdbe.org/1p0s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1p0s RCSB], [https://www.ebi.ac.uk/pdbsum/1p0s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1p0s ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/FA10_HUMAN FA10_HUMAN] Defects in F10 are the cause of factor X deficiency (FA10D) [MIM:[https://omim.org/entry/227600 227600]. A hemorrhagic disease with variable presentation. Affected individuals can manifest prolonged nasal and mucosal hemorrhage, menorrhagia, hematuria, and occasionally hemarthrosis. Some patients do not have clinical bleeding diathesis.<ref>PMID:2790181</ref> <ref>PMID:1973167</ref> <ref>PMID:1985698</ref> <ref>PMID:7669671</ref> <ref>PMID:8529633</ref> <ref>PMID:7860069</ref> <ref>PMID:8845463</ref> <ref>PMID:8910490</ref> <ref>PMID:10468877</ref> <ref>PMID:10746568</ref> <ref>PMID:10739379</ref> <ref>PMID:11248282</ref> <ref>PMID:11728527</ref> <ref>PMID:12945883</ref> <ref>PMID:15650540</ref> <ref>PMID:17393015</ref> <ref>PMID:19135706</ref>
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== Function ==
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[https://www.uniprot.org/uniprot/FA10_HUMAN FA10_HUMAN] Factor Xa is a vitamin K-dependent glycoprotein that converts prothrombin to thrombin in the presence of factor Va, calcium and phospholipid during blood clotting.
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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/p0/1p0s_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=1p0s ConSurf].
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<div style="clear:both"></div>
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'''Crystal Structure of Blood Coagulation Factor Xa in Complex with Ecotin M84R'''
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==See Also==
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*[[Ecotin|Ecotin]]
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*[[Factor Xa|Factor Xa]]
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==Overview==
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== References ==
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The serine protease factor Xa (FXa) is inhibited by ecotin with picomolar affinity. The structure of the tetrameric complex of ecotin variant M84R (M84R) with FXa has been determined to 2.8 A. Substrate directed induced fit of the binding interactions at the S2 and S4 pockets modulates the discrimination of the protease. Specifically, the Tyr at position 99 of FXa changes its conformation with respect to incoming ligand, changing the size of the S2 and S4 pockets. The role of residue 192 in substrate and inhibitor recognition is also examined. Gln 192 from FXa forms a hydrogen bond with the P2 carbonyl group of ecotin. This confirms previous biochemical and structural analyses on thrombin and activated protein C, which suggested that residue 192 may play a more general role in mediating the interactions between coagulation proteases and their inhibitors. The structure of ecotin M84R-FXa (M84R-FXa) also reveals the structure of the Gla domain in the presence of Mg(2+). The first 11 residues of the domain assume a novel conformation and likely represent an intermediate folding state of the domain.
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<references/>
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__TOC__
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==About this Structure==
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</StructureSection>
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1P0S is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] 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=1P0S OCA].
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==Reference==
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The extended interactions and Gla domain of blood coagulation factor Xa., Wang SX, Hur E, Sousa CA, Brinen L, Slivka EJ, Fletterick RJ, Biochemistry. 2003 Jul 8;42(26):7959-66. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12834348 12834348]
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[[Category: Coagulation factor Xa]]
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Protein complex]]
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[[Category: Large Structures]]
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[[Category: Brinen, L.]]
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[[Category: Brinen L]]
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[[Category: Fletterick, R J.]]
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[[Category: Fletterick RJ]]
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[[Category: Hur, E.]]
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[[Category: Hur E]]
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[[Category: Slivka, E J.]]
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[[Category: Slivka EJ]]
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[[Category: Sousa, C A.]]
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[[Category: Sousa CA]]
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[[Category: Wang, S X.]]
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[[Category: Wang SX]]
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[[Category: Ecotin m84r]]
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[[Category: Factor xa]]
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[[Category: Serine protease]]
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[[Category: Serine protease inhibitor]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:32:24 2008''
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Current revision

Crystal Structure of Blood Coagulation Factor Xa in Complex with Ecotin M84R

PDB ID 1p0s

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