1OE9

Crystal structure of Myosin V motor with essential light chain-nucleotide-free


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.222 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A Structural State of the Myosin V Motor without Bound Nucleotide

Coureux, P.-D.Wells, A.L.Menetrey, J.Yengo, C.M.Morris, C.A.Sweeney, H.L.Houdusse, A.

(2003) Nature 425: 419

  • DOI: 10.1038/nature01927
  • Primary Citation of Related Structures:  
    1OE9

  • PubMed Abstract: 
  • The myosin superfamily of molecular motors use ATP hydrolysis and actin-activated product release to produce directed movement and force. Although this is generally thought to involve movement of a mechanical lever arm attached to a motor core, the structural details of the rearrangement in myosin that drive the lever arm motion on actin attachment are unknown ...

    The myosin superfamily of molecular motors use ATP hydrolysis and actin-activated product release to produce directed movement and force. Although this is generally thought to involve movement of a mechanical lever arm attached to a motor core, the structural details of the rearrangement in myosin that drive the lever arm motion on actin attachment are unknown. Motivated by kinetic evidence that the processive unconventional myosin, myosin V, populates a unique state in the absence of nucleotide and actin, we obtained a 2.0 A structure of a myosin V fragment. Here we reveal a conformation of myosin without bound nucleotide. The nucleotide-binding site has adopted new conformations of the nucleotide-binding elements that reduce the affinity for the nucleotide. The major cleft in the molecule has closed, and the lever arm has assumed a position consistent with that in an actomyosin rigor complex. These changes have been accomplished by relative movements of the subdomains of the molecule, and reveal elements of the structural communication between the actin-binding interface and nucleotide-binding site of myosin that underlie the mechanism of chemo-mechanical transduction.


    Organizational Affiliation

    Structural Motility, Institut Curie CNRS, UMR144, 26 rue d'Ulm, 75248 Paris cedex 05, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MYOSIN VA A795Gallus gallusMutation(s): 0 
Gene Names: MYO5A
Find proteins for Q02440 (Gallus gallus)
Explore Q02440 
Go to UniProtKB:  Q02440
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
MYOSIN LIGHT CHAIN 1, SLOW-TWITCH MUSCLE A ISOFORM B151Homo sapiensMutation(s): 0 
Gene Names: MYL6BMLC1SA
Find proteins for P14649 (Homo sapiens)
Explore P14649 
Go to UniProtKB:  P14649
NIH Common Fund Data Resources
PHAROS:  P14649
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 53.933α = 90
b = 98.247β = 101.43
c = 111.378γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-09-26
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance