1QUU

CRYSTAL STRUCTURE OF TWO CENTRAL SPECTRIN-LIKE REPEATS FROM ALPHA-ACTININ


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.229 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structure of the alpha-actinin rod: molecular basis for cross-linking of actin filaments.

Djinovic-Carugo, K.Young, P.Gautel, M.Saraste, M.

(1999) Cell 98: 537-546

  • DOI: 10.1016/s0092-8674(00)81981-9
  • Primary Citation of Related Structures:  
    1QUU

  • PubMed Abstract: 
  • We have determined the crystal structure of the two central repeats in the alpha-actinin rod at 2.5 A resolution. The repeats are connected by a helical linker and form a symmetric, antiparallel dimer in which the repeats are aligned rather than stag ...

    We have determined the crystal structure of the two central repeats in the alpha-actinin rod at 2.5 A resolution. The repeats are connected by a helical linker and form a symmetric, antiparallel dimer in which the repeats are aligned rather than staggered. Using this structure, which reveals the structural principle that governs the architecture of alpha-actinin, we have devised a plausible model of the entire alpha-actinin rod. The electrostatic properties explain how the two alpha-actinin subunits assemble in an antiparallel fashion, placing the actin-binding sites at both ends of the rod. This molecular architecture results in a protein that is able to form cross-links between actin filaments.


    Organizational Affiliation

    Structural Biology Programme, European Molecular Biology Laboratory, Heidelberg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HUMAN SKELETAL MUSCLE ALPHA-ACTININ 2A250Homo sapiensMutation(s): 0 
Gene Names: ACTN2
Find proteins for P35609 (Homo sapiens)
Explore P35609 
Go to UniProtKB:  P35609
NIH Common Fund Data Resources
PHAROS  P35609
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.229 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.05α = 90
b = 60.05β = 90
c = 390.81γ = 120
Software Package:
Software NamePurpose
SHARPphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-08-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Advisory, Experimental preparation
  • Version 1.4: 2018-05-30
    Changes: Advisory, Data collection, Derived calculations