1LKX

MOTOR DOMAIN OF MYOE, A CLASS-I MYOSIN


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.228 

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This is version 1.3 of the entry. See complete history


Literature

Crystal structure of the motor domain of a class-I myosin.

Kollmar, M.Durrwang, U.Kliche, W.Manstein, D.J.Kull, F.J.

(2002) EMBO J 21: 2517-2525

  • DOI: 10.1093/emboj/21.11.2517
  • Primary Citation of Related Structures:  
    1LKX

  • PubMed Abstract: 
  • The crystal structure of the motor domain of Dictyostelium discoideum myosin-IE, a monomeric unconventional myosin, was determined. The crystallographic asymmetric unit contains four independently resolved molecules, highlighting regions that undergo lar ...

    The crystal structure of the motor domain of Dictyostelium discoideum myosin-IE, a monomeric unconventional myosin, was determined. The crystallographic asymmetric unit contains four independently resolved molecules, highlighting regions that undergo large conformational changes. Differences are particularly pronounced in the actin binding region and the converter domain. The changes in position of the converter domain reflect movements both parallel to and perpendicular to the actin axis. The orientation of the converter domain is approximately 30 degrees further up than in other myosin structures, indicating that MyoE can produce a larger power stroke by rotating its lever arm through a larger angle. The role of extended loops near the actin-binding site is discussed in the context of cellular localization. The core regions of the motor domain are similar, and the structure reveals how that core is stabilized in the absence of an N-terminal SH3-like domain.


    Organizational Affiliation

    Department of Biophysics, Max Planck Institute for Medical Research, Jahnstrasse 29, D-69120 Heidelberg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MYOSIN IE HEAVY CHAIN ABCD697Dictyostelium discoideumMutation(s): 0 
Gene Names: myoEdmiEDDB_G0288679
Find proteins for Q03479 (Dictyostelium discoideum)
Explore Q03479 
Go to UniProtKB:  Q03479
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.228 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.818α = 90
b = 143.667β = 94.86
c = 236.05γ = 90
Software Package:
Software NamePurpose
CNSrefinement
MAR345data collection
XDSdata scaling
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-06-26
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description