4XEI

Orthorhombic isomorph of bovine Arp2/3 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.87 Å
  • R-Value Free: 0.329 
  • R-Value Work: 0.279 
  • R-Value Observed: 0.281 

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


Literature

Crystals of the Arp2/3 complex in two new space groups with structural information about actin-related protein 2 and potential WASP binding sites.

Jurgenson, C.T.Pollard, T.D.

(2015) Acta Crystallogr F Struct Biol Commun 71: 1161-1168

  • DOI: https://doi.org/10.1107/S2053230X15013515
  • Primary Citation of Related Structures:  
    4XEI, 4XF2

  • PubMed Abstract: 

    Co-crystals of the bovine Arp2/3 complex with the CA motif from N-WASP in two new space groups were analyzed by X-ray diffraction. The crystals in the orthorhombic space group P212121 contained one complex per asymmetric unit, with unit-cell parameters a = 105.48, b = 156.71, c = 177.84 Å, and diffracted to 3.9 Å resolution. The crystals in the tetragonal space group P41 contained two complexes per asymmetric unit, with unit-cell parameters a = b = 149.93, c = 265.91 Å, and diffracted to 5.0 Å resolution. The electron-density maps of both new crystal forms had densities for small segments of subdomains 1 and 2 of Arp2. Both maps had density at the binding site on Arp3 for the C-terminal EWE tripeptide from N-WASP and a binding site proposed for the C motif of N-WASP in the barbed-end groove of Arp2. The map from the tetragonal crystal form had density near the barbed end of Arp3 that may correspond to the C helix of N-WASP. The noise levels and the low resolution of the maps made the assignment of specific molecular structures for any of these CA peptides impossible.


  • Organizational Affiliation

    Department of Chemistry and Physics, Delta State University, 1003 West Sunflower Road, Cleveland, MS 38733, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 3418Bos taurusMutation(s): 0 
UniProt
Find proteins for P61157 (Bos taurus)
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UniProt GroupP61157
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 2394Bos taurusMutation(s): 0 
UniProt
Find proteins for A7MB62 (Bos taurus)
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UniProt GroupA7MB62
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 2/3 complex subunit 1B372Bos taurusMutation(s): 0 
UniProt
Find proteins for Q58CQ2 (Bos taurus)
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UniProt GroupQ58CQ2
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 2/3 complex subunit 2300Bos taurusMutation(s): 0 
UniProt
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UniProt GroupQ3MHR7
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 2/3 complex subunit 3178Bos taurusMutation(s): 0 
UniProt
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 2/3 complex subunit 4168Bos taurusMutation(s): 0 
UniProt
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UniProt GroupQ148J6
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-related protein 2/3 complex subunit 5151Bos taurusMutation(s): 0 
UniProt
Find proteins for Q3SYX9 (Bos taurus)
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UniProt GroupQ3SYX9
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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.87 Å
  • R-Value Free: 0.329 
  • R-Value Work: 0.279 
  • R-Value Observed: 0.281 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 105.574α = 90
b = 156.981β = 90
c = 178.087γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
SCALEPACKdata scaling
Cootmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-02
    Type: Initial release
  • Version 1.1: 2016-12-07
    Changes: Database references
  • Version 1.2: 2023-09-27
    Changes: Data collection, Database references, Refinement description
  • Version 1.3: 2024-10-30
    Changes: Structure summary