3LUE

Model of alpha-actinin CH1 bound to F-actin


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 15.0 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Opening of tandem calponin homology domains regulates their affinity for F-actin.

Galkin, V.E.Orlova, A.Salmazo, A.Djinovic-Carugo, K.Egelman, E.H.

(2010) Nat Struct Mol Biol 17: 614-616

  • DOI: 10.1038/nsmb.1789
  • Primary Citation of Related Structures:  
    3LUE

  • PubMed Abstract: 
  • Many actin-binding proteins contain calponin homology (CH) domains, but the manner in which these domains interact with F-actin has been controversial. Crystal structures have shown the tandem CH domains of alpha-actinin to be in a compact, closed co ...

    Many actin-binding proteins contain calponin homology (CH) domains, but the manner in which these domains interact with F-actin has been controversial. Crystal structures have shown the tandem CH domains of alpha-actinin to be in a compact, closed conformation, but the interpretations of complexes of such tandem CH domains with F-actin have been ambiguous. We show that the tandem CH domains of alpha-actinin bind F-actin in an open conformation, explaining mutations that cause human diseases and suggesting that the opening of these domains may be one of the main regulatory mechanisms for proteins with tandem CH domains.


    Organizational Affiliation

    Department of Biochemistry and Molecular Genetics, University of Virginia Medical Center, Charlottesville, Virginia, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Alpha-actinin-3KLMNOPQRST109Homo sapiensMutation(s): 0 
Gene Names: ACTN3
Find proteins for Q08043 (Homo sapiens)
Explore Q08043 
Go to UniProtKB:  Q08043
NIH Common Fund Data Resources
PHAROS  Q08043
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Actin, cytoplasmic 1ABCDEFGHIJ374Homo sapiensMutation(s): 0 
Gene Names: ACTB
Find proteins for P60709 (Homo sapiens)
Explore P60709 
Go to UniProtKB:  P60709
NIH Common Fund Data Resources
PHAROS  P60709
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 15.0 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: HELICAL 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2018-07-18
    Changes: Author supporting evidence, Data collection