View source for 3kqd


==Factor xa in complex with the inhibitor 1-(3-(5-oxo-4,5- dihydro-1h-1,2,4-triazol-3-yl)phenyl)-6-(2'-(pyrrolidin-1- ylmethyl)biphenyl-4-yl)-3-(trifluoromethyl)-5,6-dihydro- 1h-pyrazolo[3,4-c]pyridin-7(4h)-one==
<StructureSection load='3kqd' size='340' side='right' caption='[[3kqd]], [[Resolution|resolution]] 2.75&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3kqd]] is a 2 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=3KQD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3KQD FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=LGL:1-(3-(5-OXO-4,5-DIHYDRO-1H-1,2,4-TRIAZOL-3-YL)PHENYL)-6-(2-(PYRROLIDIN-1-YLMETHYL)BIPHENYL-4-YL)-3-(TRIFLUOROMETHYL)-5,6-DIHYDRO-1H-PYRAZOLO[3,4-C]PYRIDIN-7(4H)-ONE'>LGL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3kqb|3kqb]], [[3kqc|3kqc]], [[3kqe|3kqe]]</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Coagulation_factor_Xa Coagulation factor Xa], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.21.6 3.4.21.6] </span></td></tr>
<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=3kqd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3kqd OCA], [http://pdbe.org/3kqd PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3kqd RCSB], [http://www.ebi.ac.uk/pdbsum/3kqd PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3kqd ProSAT]</span></td></tr>
</table>
== Disease ==
[[http://www.uniprot.org/uniprot/FA10_HUMAN FA10_HUMAN]] Defects in F10 are the cause of factor X deficiency (FA10D) [MIM:[http://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>  
== Function ==
[[http://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. 
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/kq/3kqd_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=3kqd ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
We have discovered that phenyltriazolinone is a novel and potent P1 moiety for coagulation factor Xa. X-ray structures of the inhibitors with a phenyltriazolinone in the P1 position revealed that the side chain of Asp189 has reoriented resulting in a novel S1 binding pocket which is larger in size to accommodate the phenyltriazolinone P1 substrate.

Phenyltriazolinones as potent factor Xa inhibitors.,Quan ML, Pinto DJ, Rossi KA, Sheriff S, Alexander RS, Amparo E, Kish K, Knabb RM, Luettgen JM, Morin P, Smallwood A, Woerner FJ, Wexler RR Bioorg Med Chem Lett. 2010 Feb 15;20(4):1373-7. Epub 2010 Jan 11. PMID:20100660<ref>PMID:20100660</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 3kqd" style="background-color:#fffaf0;"></div>

==See Also==
*[[Factor Xa|Factor Xa]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Coagulation factor Xa]]
[[Category: Homo sapiens]]
[[Category: Sheriff, S]]
[[Category: Blood coagulation]]
[[Category: Blood coagulation factor]]
[[Category: Calcium- binding]]
[[Category: Egf-like domain]]
[[Category: Gamma-carboxyglutamic acid]]
[[Category: Glycoprotein]]
[[Category: Hydrolase]]
[[Category: Plasma]]
[[Category: Protease]]
[[Category: Protein inhibitor complex]]
[[Category: Secreted]]
[[Category: Serine protease]]