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5kg8

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Revision as of 20:31, 10 April 2020

Rigor myosin X co-complexed with an actin filament

5kg8, resolution 9.10Å

Structural highlights

5kg8 is a 4 chain structure with sequence from Human and Oryctolagus cuniculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	MYO10, KIAA0799 (HUMAN)
Experimental data:	Check to display Experimental Data
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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).^[1] [ACTS_RABIT] Actins are highly conserved proteins that are involved in various types of cell motility and are ubiquitously expressed in all eukaryotic cells.

Publication Abstract from PubMed

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.

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^[2]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Bohil AB, Robertson BW, Cheney RE. Myosin-X is a molecular motor that functions in filopodia formation. Proc Natl Acad Sci U S A. 2006 Aug 15;103(33):12411-6. Epub 2006 Aug 7. PMID:16894163 doi:10.1073/pnas.0602443103
↑ 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. The myosin X motor is optimized for movement on actin bundles. Nat Commun. 2016 Sep 1;7:12456. doi: 10.1038/ncomms12456. PMID:27580874 doi:http://dx.doi.org/10.1038/ncomms12456

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5kg8"

@@ Line 3: / Line 3: @@
 <SX load='5kg8' size='340' side='right' viewer='molstar' caption='[[5kg8]], [[Resolution|resolution]] 9.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5kg8]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human] 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>
+<table><tr><td colspan='2'>[[5kg8]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human] 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://proteopedia.org/fgij/fg.htm?mol=5KG8 FirstGlance]. <br>
 </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">MYO10, KIAA0799 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/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>
 </table>
 == Function ==

5kg8

From Proteopedia

Revision as of 20:31, 10 April 2020

Rigor myosin X co-complexed with an actin filament

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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