1HCI

CRYSTAL STRUCTURE OF THE ROD DOMAIN OF ALPHA-ACTININ


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.270 
  • R-Value Observed: 0.270 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Crystal Structure of the Alpha-Actinin Rod Reveals an Extensive Torsional Twist

Ylanne, J.Scheffzek, K.Young, P.Saraste, M.

(2001) Structure 9: 597

  • DOI: https://doi.org/10.1016/s0969-2126(01)00619-0
  • Primary Citation of Related Structures:  
    1HCI

  • PubMed Abstract: 

    Alpha-actinin is a ubiquitously expressed protein found in numerous actin structures. It consists of an N-terminal actin binding domain, a central rod domain, and a C-terminal domain and functions as a homodimer to cross-link actin filaments. The rod domain determines the distance between cross-linked actin filaments and also serves as an interaction site for several cytoskeletal and signaling proteins. We report here the crystal structure of the alpha-actinin rod. The structure is a twisted antiparallel dimer that contains a conserved acidic surface. The novel features revealed by the structure allow prediction of the orientation of parallel and antiparallel cross-linked actin filaments in relation to alpha-actinin. The conserved acidic surface is a possible interaction site for several cytoplasmic tails of transmembrane proteins involved in the recruitment of alpha-actinin to the plasma membrane.


  • Organizational Affiliation

    European Molecular Biology Laboratory, EMBL, Structural and Computational Biology Programme, Meyerhofstrasse 1, D-69117, Heidelberg, Germany. ylanne@embl-heidelberg.de


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ALPHA-ACTININ 2
A, B
476Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P35609 (Homo sapiens)
Explore P35609 
Go to UniProtKB:  P35609
PHAROS:  P35609
GTEx:  ENSG00000077522 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP35609
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.270 
  • R-Value Observed: 0.270 
  • Space Group: P 31
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 103.28α = 90
b = 103.28β = 90
c = 218.64γ = 120
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XDSdata scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-06-27
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-12-13
    Changes: Data collection, Database references, Refinement description