8f8s: Difference between revisions
New page: '''Unreleased structure''' The entry 8f8s is ON HOLD Authors: Description: Category: Unreleased Structures |
No edit summary |
||
(3 intermediate revisions by the same user not shown) | |||
Line 1: | Line 1: | ||
==Cryo-EM structure of the free pointed end of F-actin== | |||
<StructureSection load='8f8s' size='340' side='right'caption='[[8f8s]], [[Resolution|resolution]] 2.84Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[8f8s]] is a 7 chain structure with sequence from [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8F8S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8F8S FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 2.84Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=HIC:4-METHYL-HISTIDINE'>HIC</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</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=8f8s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8f8s OCA], [https://pdbe.org/8f8s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8f8s RCSB], [https://www.ebi.ac.uk/pdbsum/8f8s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8f8s ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/ACTS_RABIT ACTS_RABIT] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The barbed and pointed ends of the actin filament (F-actin) are the sites of growth/shrinkage and the targets of capping proteins that block subunit exchange, including CapZ at the barbed end and tropomodulin at the pointed end. We describe cryo-electron microscopy structures of the free and capped ends of F-actin. Terminal subunits at the free barbed end adopt a "flat" F-actin conformation. CapZ binds with minor changes to the barbed end but major changes to itself. In contrast, subunits at the free pointed end adopt a "twisted" G-actin conformation. Tropomodulin binding forces the second subunit into an F-actin conformation. The structures reveal how the ends differ from the middle in F-actin and how these differences control subunit addition/dissociation, capping, and interactions with end-binding proteins. | |||
Structures of the free and capped ends of the actin filament.,Carman PJ, Barrie KR, Rebowski G, Dominguez R Science. 2023 May 25:eadg6812. doi: 10.1126/science.adg6812. PMID:37228182<ref>PMID:37228182</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
<div class="pdbe-citations 8f8s" style="background-color:#fffaf0;"></div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Large Structures]] | |||
[[Category: Oryctolagus cuniculus]] | |||
[[Category: Barrie KR]] | |||
[[Category: Carman PJ]] | |||
[[Category: Dominguez R]] |