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5kg8

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==Rigor myosin X co-complexed with an actin filament==
==Rigor myosin X co-complexed with an actin filament==
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<StructureSection load='5kg8' size='340' side='right' caption='[[5kg8]], [[Resolution|resolution]] 9.10&Aring;' scene=''>
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<SX load='5kg8' size='340' side='right' viewer='molstar' caption='[[5kg8]], [[Resolution|resolution]] 9.10&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[5kg8]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/ ] and [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5KG8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5KG8 FirstGlance]. <br>
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<table><tr><td colspan='2'>[[5kg8]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5KG8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5KG8 FirstGlance]. <br>
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</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=5kg8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5kg8 OCA], [http://pdbe.org/5kg8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5kg8 RCSB], [http://www.ebi.ac.uk/pdbsum/5kg8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5kg8 ProSAT]</span></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 9.1&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5kg8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5kg8 OCA], [https://pdbe.org/5kg8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5kg8 RCSB], [https://www.ebi.ac.uk/pdbsum/5kg8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5kg8 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
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[[http://www.uniprot.org/uniprot/MYO10_HUMAN MYO10_HUMAN]] Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. MYO10 binds to actin filaments and actin bundles and functions as plus end-directed motor. The tail domain binds to membranous compartments containing phosphatidylinositol 3,4,5-trisphosphate or integrins, and mediates cargo transport along actin filaments. Regulates cell shape, cell spreading and cell adhesion. Stimulates the formation and elongation of filopodia. May play a role in neurite outgrowth and axon guidance. Plays a role in formation of the podosome belt in osteoclasts (By similarity).<ref>PMID:16894163</ref> [[http://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.
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[https://www.uniprot.org/uniprot/MYO10_HUMAN MYO10_HUMAN] Myosins are actin-based motor molecules with ATPase activity. Unconventional myosins serve in intracellular movements. MYO10 binds to actin filaments and actin bundles and functions as plus end-directed motor. The tail domain binds to membranous compartments containing phosphatidylinositol 3,4,5-trisphosphate or integrins, and mediates cargo transport along actin filaments. Regulates cell shape, cell spreading and cell adhesion. Stimulates the formation and elongation of filopodia. May play a role in neurite outgrowth and axon guidance. Plays a role in formation of the podosome belt in osteoclasts (By similarity).<ref>PMID:16894163</ref>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Myosin X has features not found in other myosins. Its structure must underlie its unique ability to generate filopodia, which are essential for neuritogenesis, wound healing, cancer metastasis and some pathogenic infections. By determining high-resolution structures of key components of this motor, and characterizing the in vitro behaviour of the native dimer, we identify the features that explain the myosin X dimer behaviour. Single-molecule studies demonstrate that a native myosin X dimer moves on actin bundles with higher velocities and takes larger steps than on single actin filaments. The largest steps on actin bundles are larger than previously reported for artificially dimerized myosin X constructs or any other myosin. Our model and kinetic data explain why these large steps and high velocities can only occur on bundled filaments. Thus, myosin X functions as an antiparallel dimer in cells with a unique geometry optimized for movement on actin bundles.
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The myosin X motor is optimized for movement on actin bundles.,Ropars V, Yang Z, Isabet T, Blanc F, Zhou K, Lin T, Liu X, Hissier P, Samazan F, Amigues B, Yang ED, Park H, Pylypenko O, Cecchini M, Sindelar CV, Sweeney HL, Houdusse A Nat Commun. 2016 Sep 1;7:12456. doi: 10.1038/ncomms12456. PMID:27580874<ref>PMID:27580874</ref>
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==See Also==
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*[[Actin 3D structures|Actin 3D structures]]
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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*[[Myosin 3D Structures|Myosin 3D Structures]]
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</div>
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<div class="pdbe-citations 5kg8" style="background-color:#fffaf0;"></div>
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== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
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</StructureSection>
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</SX>
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[[Category: Homo sapiens]]
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[[Category: Large Structures]]
[[Category: Oryctolagus cuniculus]]
[[Category: Oryctolagus cuniculus]]
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[[Category: Houdusse, A]]
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[[Category: Houdusse A]]
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[[Category: Sindelar, C V]]
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[[Category: Sindelar CV]]
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[[Category: Sweeney, L]]
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[[Category: Sweeney L]]
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[[Category: Motor protein]]
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[[Category: Myosin molecular motors cytoskeletal motility]]
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Current revision

Rigor myosin X co-complexed with an actin filament

5kg8, resolution 9.10Å

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