8dmy: Difference between revisions

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== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[8dmy]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8DMY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8DMY FirstGlance]. <br>
<table><tr><td colspan='2'>[[8dmy]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8DMY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8DMY FirstGlance]. <br>
</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>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.07&#8491;</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=8dmy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8dmy OCA], [https://pdbe.org/8dmy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8dmy RCSB], [https://www.ebi.ac.uk/pdbsum/8dmy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8dmy 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=8dmy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8dmy OCA], [https://pdbe.org/8dmy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8dmy RCSB], [https://www.ebi.ac.uk/pdbsum/8dmy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8dmy ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[https://www.uniprot.org/uniprot/ACTC_BOVIN ACTC_BOVIN] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.
[https://www.uniprot.org/uniprot/ACTC_BOVIN ACTC_BOVIN] 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 ==
Actin isoforms organize into distinct networks that are essential for the normal function of eukaryotic cells. Despite a high level of sequence and structure conservation, subtle differences in their design principles determine the interaction with myosin motors and actin-binding proteins. Therefore, identifying how the structure of actin isoforms relates to function is important for our understanding of normal cytoskeletal physiology. Here, we report the high-resolution structures of filamentous skeletal muscle alpha-actin (3.37 A), cardiac muscle alpha-actin (3.07 A), ss-actin (2.99 A), and gamma-actin (3.38 A) in the Mg(2+).ADP state with their native post-translational modifications. The structures revealed isoform-specific conformations of the N-terminus that shift closer to the filament surface upon myosin binding, thereby establishing isoform-specific interfaces. Collectively, the structures of single-isotype, post-translationally modified bare skeletal muscle alpha-actin, cardiac muscle alpha-actin, ss-actin, and gamma-actin reveal general principles, similarities, and differences between isoforms. They complement the repertoire of known actin structures and allow for a comprehensive understanding of in vitro and in vivo functions of actin isoforms.
Structural insights into actin isoforms.,Arora AS, Huang HL, Singh R, Narui Y, Suchenko A, Hatano T, Heissler SM, Balasubramanian MK, Chinthalapudi K Elife. 2023 Feb 15;12:e82015. doi: 10.7554/eLife.82015. PMID:36790143<ref>PMID:36790143</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 8dmy" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
</StructureSection>

Latest revision as of 07:38, 5 August 2026

Cryo-EM structure of cardiac muscle alpha-actin

8dmy, resolution 3.07Å

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