3tj5
From Proteopedia
(Difference between revisions)
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- | + | ==human vinculin head domain (Vh1, residues 1-258) in complex with the vinculin binding site of the surface cell antigen 4 (sca4-VBS-N; residues 412-434) from Rickettsia rickettsii== | |
- | + | <StructureSection load='3tj5' size='340' side='right' caption='[[3tj5]], [[Resolution|resolution]] 1.99Å' scene=''> | |
- | + | == Structural highlights == | |
- | + | <table><tr><td colspan='2'>[[3tj5]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Rickettsia_rickettsii Rickettsia rickettsii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3TJ5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TJ5 FirstGlance]. <br> | |
- | ==Disease== | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr> |
+ | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3rf3|3rf3]], [[2ibf|2ibf]], [[2hsq|2hsq]], [[2gww|2gww]], [[1rkc|1rkc]], [[3s90|3s90]], [[3tj6|3tj6]]</td></tr> | ||
+ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">VCL ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens]), RrIowa_0797, sca4 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=783 Rickettsia rickettsii])</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=3tj5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tj5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3tj5 RCSB], [http://www.ebi.ac.uk/pdbsum/3tj5 PDBsum]</span></td></tr> | ||
+ | </table> | ||
+ | == Disease == | ||
[[http://www.uniprot.org/uniprot/VINC_HUMAN VINC_HUMAN]] Defects in VCL are the cause of cardiomyopathy dilated type 1W (CMD1W) [MIM:[http://omim.org/entry/611407 611407]]. Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.<ref>PMID:11815424</ref> <ref>PMID:16236538</ref> Defects in VCL are the cause of familial hypertrophic cardiomyopathy type 15 (CMH15) [MIM:[http://omim.org/entry/613255 613255]]. It is a hereditary heart disorder characterized by ventricular hypertrophy, which is usually asymmetric and often involves the interventricular septum. The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. The disorder has inter- and intrafamilial variability ranging from benign to malignant forms with high risk of cardiac failure and sudden cardiac death.<ref>PMID:16712796</ref> | [[http://www.uniprot.org/uniprot/VINC_HUMAN VINC_HUMAN]] Defects in VCL are the cause of cardiomyopathy dilated type 1W (CMD1W) [MIM:[http://omim.org/entry/611407 611407]]. Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Patients are at risk of premature death.<ref>PMID:11815424</ref> <ref>PMID:16236538</ref> Defects in VCL are the cause of familial hypertrophic cardiomyopathy type 15 (CMH15) [MIM:[http://omim.org/entry/613255 613255]]. It is a hereditary heart disorder characterized by ventricular hypertrophy, which is usually asymmetric and often involves the interventricular septum. The symptoms include dyspnea, syncope, collapse, palpitations, and chest pain. They can be readily provoked by exercise. The disorder has inter- and intrafamilial variability ranging from benign to malignant forms with high risk of cardiac failure and sudden cardiac death.<ref>PMID:16712796</ref> | ||
- | + | == Function == | |
- | ==Function== | + | |
[[http://www.uniprot.org/uniprot/VINC_HUMAN VINC_HUMAN]] Actin filament (F-actin)-binding protein involved in cell-matrix adhesion and cell-cell adhesion. Regulates cell-surface E-cadherin expression and potentiates mechanosensing by the E-cadherin complex. May also play important roles in cell morphology and locomotion.<ref>PMID:20484056</ref> | [[http://www.uniprot.org/uniprot/VINC_HUMAN VINC_HUMAN]] Actin filament (F-actin)-binding protein involved in cell-matrix adhesion and cell-cell adhesion. Regulates cell-surface E-cadherin expression and potentiates mechanosensing by the E-cadherin complex. May also play important roles in cell morphology and locomotion.<ref>PMID:20484056</ref> | ||
+ | <div style="background-color:#fffaf0;"> | ||
+ | == Publication Abstract from PubMed == | ||
+ | Pathogenic Rickettsiae species cause high morbidity and mortality, especially R. prowazekii the causative agent of typhus. Like many intracellular pathogens, Rickettsiae exploit the cytoskeleton to enter and spread within the host cell. Here we report that the cell surface antigen sca4 of Rickettsiae colocalizes with vinculin in cells at sites of focal adhesions, and that sca4 binds to and activates vinculin through two vinculin binding sites (VBSs) that are conserved across all Rickettsia. Remarkably, this occurs through molecular mimicry of the vinculn-talin interaction that is also seen with the IpaA invasin of the intracellular pathogen Shigella, where binding of these VBSs to the vinculin seven-helix bundle head domain (Vh1) displaces intramolecular interactions with the vinculin tail domain that normally clamp vinculin in an inactive state. Finally, the vinculin:sca4-VBS crystal structures reveal that vinculin adopts a new conformation when bound to the C-terminal VBS of sca4. Collectively, our data define the mechanism by which sca4 activates vinculin and interacts with the actin cytoskeleton and they suggest important roles for vinculin in Rickettsia pathogenesis. | ||
- | + | The Rickettsia surface cell antigen 4 applies mimicry to bind to and activate vinculin.,Park H, Lee JH, Cossart P, Gouin E, Izard T J Biol Chem. 2011 Aug 13. PMID:21841197<ref>PMID:21841197</ref> | |
- | + | ||
+ | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
+ | </div> | ||
==See Also== | ==See Also== | ||
*[[Vinculin|Vinculin]] | *[[Vinculin|Vinculin]] | ||
- | + | == References == | |
- | == | + | <references/> |
- | + | __TOC__ | |
+ | </StructureSection> | ||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Rickettsia rickettsii]] | [[Category: Rickettsia rickettsii]] | ||
- | [[Category: Cossart, P | + | [[Category: Cossart, P]] |
- | [[Category: Gouin, E | + | [[Category: Gouin, E]] |
- | [[Category: Izard, T | + | [[Category: Izard, T]] |
- | [[Category: Lee, J H | + | [[Category: Lee, J H]] |
- | [[Category: Park, H | + | [[Category: Park, H]] |
[[Category: Alpha-helix bundle domain]] | [[Category: Alpha-helix bundle domain]] | ||
[[Category: Cell adhesion]] | [[Category: Cell adhesion]] |
Revision as of 07:25, 21 December 2014
human vinculin head domain (Vh1, residues 1-258) in complex with the vinculin binding site of the surface cell antigen 4 (sca4-VBS-N; residues 412-434) from Rickettsia rickettsii
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