2FF6

Crystal structure of Gelsolin domain 1:ciboulot domain 2 hybrid in complex with actin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 

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This is version 1.3 of the entry. See complete history


Literature

The Structural Basis of Actin Interaction with Multiple WH2/beta-Thymosin Motif-Containing Proteins

Aguda, A.H.Xue, B.Irobi, E.Preat, T.Robinson, R.C.

(2006) Structure 14: 469-476

  • DOI: https://doi.org/10.1016/j.str.2005.12.011
  • Primary Citation of Related Structures:  
    2FF3, 2FF6

  • PubMed Abstract: 

    Participation of actin in cellular processes relies on the dynamics of filament assembly. Filament elongation is fed by monomeric actin in complex with either profilin or a Wiscott-Aldrich syndrome protein (WASP) homology domain 2 (WH2)/beta-thymosin (betaT) domain. WH2/betaT motif repetition (typified by ciboulot) or combination with nonrelated domains (as found in N-WASP) results in proteins that yield their actin to filament elongation. Here, we report the crystal structures of actin bound hybrid proteins, constructed between gelsolin and WH2/betaT domains from ciboulot or N-WASP. We observe the C-terminal half of ciboulot domain 2 bound to actin. In solution, we show that cibolout domains 2 and 3 bind to both G- and F-actin, and that whole ciboulot forms a complex with two actin monomers. In contrast, the analogous portion of N-WASP WH2 domain 2 is detached from actin, indicating that the C-terminal halves of the betaT and WH2 motifs are not functionally analogous.


  • Organizational Affiliation

    Department of Medical Biochemistry and Microbiology, Uppsala Biomedical Center, Uppsala University, Uppsala 751 23, Sweden.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
GelsolinA [auth G]150Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P06396 (Homo sapiens)
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Go to UniProtKB:  P06396
GTEx:  ENSG00000148180 
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UniProt GroupP06396
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
CG4944-PC, isoform CB [auth H]26Drosophila melanogasterMutation(s): 0 
UniProt
Find proteins for Q8IRS7 (Drosophila melanogaster)
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UniProt GroupQ8IRS7
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Actin, alpha skeletal muscleC [auth A]375Oryctolagus cuniculusMutation(s): 0 
UniProt
Find proteins for P68135 (Oryctolagus cuniculus)
Explore P68135 
Go to UniProtKB:  P68135
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UniProt GroupP68135
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.237 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.204 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.221α = 90
b = 69.373β = 95.1
c = 79.65γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
AMoREphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-03-21
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-05-23
    Changes: Data collection