5I0I

Crystal structure of myosin X motor domain with 2IQ motifs in pre-powerstroke state


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.192 

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

    Structural Motility, Institut Curie, PSL Research University, CNRS, UMR 144, F-75005 Paris, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Unconventional myosin-X
A, B
791Homo sapiensMutation(s): 0 
Gene Names: MYO10 (KIAA0799)
Find proteins for Q9HD67 (Homo sapiens)
Go to Gene View: MYO10
Go to UniProtKB:  Q9HD67
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Calmodulin
C
145Homo sapiensMutation(s): 0 
Gene Names: CALM2 (CAM2, CAMB)
Find proteins for P0DP24 (Homo sapiens)
Go to Gene View: CALM2
Go to UniProtKB:  P0DP24
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Calmodulin
E
145Homo sapiensMutation(s): 0 
Gene Names: CALM2 (CAM2, CAMB)
Find proteins for P0DP24 (Homo sapiens)
Go to Gene View: CALM2
Go to UniProtKB:  P0DP24
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Calmodulin
G
43Homo sapiensMutation(s): 0 
Gene Names: CALM2 (CAM2, CAMB)
Find proteins for P0DP24 (Homo sapiens)
Go to Gene View: CALM2
Go to UniProtKB:  P0DP24
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Calmodulin
I
64Homo sapiensMutation(s): 0 
Gene Names: CALM2 (CAM2, CAMB)
Find proteins for P0DP24 (Homo sapiens)
Go to Gene View: CALM2
Go to UniProtKB:  P0DP24
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, E
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
MPO
Query on MPO

Download SDF File 
Download CCD File 
A, B
3[N-MORPHOLINO]PROPANE SULFONIC ACID
C7 H15 N O4 S
DVLFYONBTKHTER-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
VO4
Query on VO4

Download SDF File 
Download CCD File 
A, B
VANADATE ION
O4 V
LSGOVYNHVSXFFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.15 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.192 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 113.950α = 90.00
b = 173.410β = 90.00
c = 178.750γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
PHASERphasing

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: 2017-11-22
    Type: Database references