4liz: Difference between revisions
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==Crystal structure of coactosin from Entamoeba histolytica== | ==Crystal structure of coactosin from Entamoeba histolytica== | ||
<StructureSection load='4liz' size='340' side='right' caption='[[4liz]], [[Resolution|resolution]] 1.50Å' scene=''> | <StructureSection load='4liz' size='340' side='right'caption='[[4liz]], [[Resolution|resolution]] 1.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4liz]] is a 1 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4LIZ OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[4liz]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Entamoeba_histolytica_HM-1:IMSS-A Entamoeba histolytica HM-1:IMSS-A]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4LIZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4LIZ FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[ | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.499Å</td></tr> | ||
<tr><td class="sblockLbl"><b>[[ | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EPE:4-(2-HYDROXYETHYL)-1-PIPERAZINE+ETHANESULFONIC+ACID'>EPE</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene></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=4liz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4liz OCA], [https://pdbe.org/4liz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4liz RCSB], [https://www.ebi.ac.uk/pdbsum/4liz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4liz ProSAT]</span></td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | </table> | ||
<table> | == Function == | ||
[https://www.uniprot.org/uniprot/COAA_ENTH1 COAA_ENTH1] Actin-binding protein which is involved in F-actin stabilization (PubMed:25210743). May play a role during phagocytosis and pseudopod formation by contributing to the maintenance of F-actin (PubMed:25210743).<ref>PMID:25210743</ref> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Entamoeba histolytica is a protist parasite that is the causative agent of amoebiasis, and is a highly motile organism. The motility is essential for its survival and pathogenesis, and a dynamic actin cytoskeleton is required for this process. EhCoactosin, an actin-binding protein of the ADF/cofilin family, participates in actin dynamics, and here we report our studies of this protein using both structural and functional approaches. The X-ray crystal structure of EhCoactosin resembles that of human coactosin-like protein, with major differences in the distribution of surface charges and the orientation of terminal regions. According to in vitro binding assays, full-length EhCoactosin binds both F- and G-actin. Instead of acting to depolymerize or severe F-actin, EhCoactosin directly stabilizes the polymer. When EhCoactosin was visualized in E. histolytica cells using either confocal imaging or total internal reflectance microscopy, it was found to colocalize with F-actin at phagocytic cups. Over-expression of this protein stabilized F-actin and inhibited the phagocytic process. EhCoactosin appears to be an unusual type of coactosin involved in E. histolytica actin dynamics. | |||
EhCoactosin stabilizes actin filaments in the protist parasite Entamoeba histolytica.,Kumar N, Somlata, Mazumder M, Dutta P, Maiti S, Gourinath S PLoS Pathog. 2014 Sep 11;10(9):e1004362. doi: 10.1371/journal.ppat.1004362., eCollection 2014 Sep. PMID:25210743<ref>PMID:25210743</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 4liz" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Entamoeba histolytica HM-1:IMSS-A]] | ||
[[Category: Large Structures]] | |||
[[Category: | [[Category: Gourinath S]] | ||
[[Category: | [[Category: Kumar N]] | ||
[[Category: | |||