5I0H

Crystal structure of myosin X motor domain in pre-powerstroke state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.165 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

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, E.D.Park, H.Pylypenko, O.Cecchini, M.Sindelar, C.V.Sweeney, H.L.Houdusse, A.

(2016) Nat Commun 7: 12456-12456

  • DOI: 10.1038/ncomms12456
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • 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-resol ...

    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.


    Organizational Affiliation

    Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520, USA.,Sorbonne Universités, UPMC Univ Paris 06, Sorbonne Universités, IFD, 4 Place Jussieu, 75252 Paris, France.,Structural Motility, Institut Curie, PSL Research University, CNRS, UMR 144, F-75005 Paris, France.,Department of Pharmacology and Therapeutics and the Myology Institute, University of Florida College of Medicine, PO Box 100267, Gainesville, Florida 32610-0267, USA.,Department of Physics, Division of Life Science, and State Key Laboratory of Molecular Neuroscience. The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.,Laboratoire d'Ingénierie des Fonctions Moléculaires (ISIS), UMR 7006 CNRS, Université de Strasbourg, F-67083 Strasbourg Cedex, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Unconventional myosin-X
A, B
741Homo sapiensMutation(s): 0 
Gene Names: MYO10 (KIAA0799)
Find proteins for Q9HD67 (Homo sapiens)
Go to Gene View: MYO10
Go to UniProtKB:  Q9HD67
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ADP
Query on ADP

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Download CCD File 
A, B
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
EDO
Query on EDO

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Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
BEF
Query on BEF

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Download CCD File 
A, B
BERYLLIUM TRIFLUORIDE ION
Be F3
OGIAHMCCNXDTIE-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.165 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 76.480α = 75.69
b = 78.300β = 86.38
c = 78.670γ = 76.12
Software Package:
Software NamePurpose
XDSdata reduction
PHASERphasing
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR blanche BLAN10
French National Research AgencyFranceANR-13-BSV8-0019-01
Ligue contre le cancerFrance--
ARCFrance--
National Institutes of HealthUnited StatesDC009100
National Institutes of HealthUnited StatesHL110869

Revision History 

  • Version 1.0: 2016-09-07
    Type: Initial release
  • Version 1.1: 2016-09-14
    Type: Database references
  • Version 1.2: 2017-08-30
    Type: Author supporting evidence
  • Version 1.3: 2019-10-16
    Type: Data collection