1zjd: Difference between revisions
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<StructureSection load='1zjd' size='340' side='right'caption='[[1zjd]], [[Resolution|resolution]] 2.60Å' scene=''> | <StructureSection load='1zjd' size='340' side='right'caption='[[1zjd]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1zjd]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[1zjd]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZJD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZJD FirstGlance]. <br> | ||
</td></tr><tr id=' | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</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=1zjd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zjd OCA], [https://pdbe.org/1zjd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zjd RCSB], [https://www.ebi.ac.uk/pdbsum/1zjd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zjd ProSAT]</span></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=1zjd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zjd OCA], [https://pdbe.org/1zjd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zjd RCSB], [https://www.ebi.ac.uk/pdbsum/1zjd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zjd ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Disease == | == Disease == | ||
[https://www.uniprot.org/uniprot/FA11_HUMAN FA11_HUMAN] Defects in F11 are the cause of factor XI deficiency (FA11D) [MIM:[https://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> | |||
== Function == | == Function == | ||
[https://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. | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zj/1zjd_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zj/1zjd_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/ | <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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==See Also== | ==See Also== | ||
*[[Factor XIa|Factor XIa]] | *[[Factor XIa 3D structures|Factor XIa 3D structures]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Homo sapiens]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Abdel-Meguid | [[Category: Abdel-Meguid SS]] | ||
[[Category: Babine | [[Category: Babine RE]] | ||
[[Category: Jin | [[Category: Jin L]] | ||
[[Category: Navaneetham | [[Category: Navaneetham D]] | ||
[[Category: Pandey | [[Category: Pandey P]] | ||
[[Category: Strickler | [[Category: Strickler JE]] | ||
[[Category: Walsh | [[Category: Walsh PN]] | ||
Latest revision as of 11:58, 6 November 2024
Crystal Structure of the Catalytic Domain of Coagulation Factor XI in Complex with Kunitz Protease Inhibitor Domain of Protease Nexin IICrystal Structure of the Catalytic Domain of Coagulation Factor XI in Complex with Kunitz Protease Inhibitor Domain of Protease Nexin II
Structural highlights
DiseaseFA11_HUMAN Defects in F11 are the cause of factor XI deficiency (FA11D) [MIM: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.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] FunctionFA11_HUMAN Factor XI triggers the middle phase of the intrinsic pathway of blood coagulation by activating factor IX. Evolutionary Conservation![]() Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedFactor XIa (FXIa) is a serine protease important for initiating the intrinsic pathway of blood coagulation. Protease nexin 2 (PN2) is a Kunitz-type protease inhibitor secreted by activated platelets and a physiologically important inhibitor of FXIa. Inhibition of FXIa by PN2 requires interactions between the two proteins that are confined to the catalytic domain of the enzyme and the Kunitz protease inhibitor (KPI) domain of PN2. Recombinant PN2KPI and a mutant form of the FXI catalytic domain (FXIac) were expressed in yeast, purified to homogeneity, co-crystallized, and the structure of the complex was solved at 2.6 angstroms (Protein Data Bank code 1ZJD). In this complex, PN2KPI has a characteristic, disulfide-stabilized double loop structure that fits into the FXIac active site. To determine the contributions of residues within PN2KPI to its inhibitory activity, selected point mutations in PN2KPI loop 1 11TGPCRAMISR20 and loop 2 34FYGGC38 were tested for their ability to inhibit FXIa. The P1 site mutation R15A completely abolished its ability to inhibit FXIa. IC50 values for the wild type protein and the remaining mutants were as follows: PN2KPI WT, 1.28 nM; P13A, 5.92 nM; M17A, 1.62 nM; S19A, 1.86 nM; R20A, 5.67 nM; F34A, 9.85 nM. The IC50 values for the M17A and S19A mutants were not significantly different from those obtained with wild type PN2KPI. These functional studies and activated partial thromboplastin time analysis validate predictions made from the PN2KPI-FXIac co-crystal structure and implicate PN2KPI residues, in descending order of importance, Arg15, Phe34, Pro13, and Arg20 in FXIa inhibition by PN2KPI. Structural and mutational analyses of the molecular interactions between the catalytic domain of factor XIa and the Kunitz protease inhibitor domain of protease nexin 2.,Navaneetham D, Jin L, Pandey P, Strickler JE, Babine RE, Abdel-Meguid SS, Walsh PN J Biol Chem. 2005 Oct 28;280(43):36165-75. Epub 2005 Aug 6. PMID:16085935[21] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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