5MWE

Complex between the Leucine Zipper (LZ, residues 490-567) and Centrosomin-motif 2 (CM2) domains of Drosophila melanogaster Centrosomin (Cnn)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.02 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 

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Ligand Structure Quality Assessment 


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Literature

Structural Basis for Mitotic Centrosome Assembly in Flies.

Feng, Z.Caballe, A.Wainman, A.Johnson, S.Haensele, A.F.M.Cottee, M.A.Conduit, P.T.Lea, S.M.Raff, J.W.

(2017) Cell 169: 1078-1089.e13

  • DOI: https://doi.org/10.1016/j.cell.2017.05.030
  • Primary Citation of Related Structures:  
    5I7C, 5MVW, 5MW0, 5MW9, 5MWE

  • PubMed Abstract: 

    In flies, Centrosomin (Cnn) forms a phosphorylation-dependent scaffold that recruits proteins to the mitotic centrosome, but how Cnn assembles into a scaffold is unclear. We show that scaffold assembly requires conserved leucine zipper (LZ) and Cnn-motif 2 (CM2) domains that co-assemble into a 2:2 complex in vitro. We solve the crystal structure of the LZ:CM2 complex, revealing that both proteins form helical dimers that assemble into an unusual tetramer. A slightly longer version of the LZ can form micron-scale structures with CM2, whose assembly is stimulated by Plk1 phosphorylation in vitro. Mutating individual residues that perturb LZ:CM2 tetramer assembly perturbs the formation of these micron-scale assemblies in vitro and Cnn-scaffold assembly in vivo. Thus, Cnn molecules have an intrinsic ability to form large, LZ:CM2-interaction-dependent assemblies that are critical for mitotic centrosome assembly. These studies provide the first atomic insight into a molecular interaction required for mitotic centrosome assembly.


  • Organizational Affiliation

    The Sir William Dunn School of Pathology, University of Oxford, South Parks Road, Oxford OX1 3RE, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CentrosominA,
D [auth B]
70Drosophila melanogasterMutation(s): 0 
Gene Names: cnnArrCG4832
UniProt
Find proteins for P54623 (Drosophila melanogaster)
Explore P54623 
Go to UniProtKB:  P54623
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP54623
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
CentrosominB [auth C],
C [auth D]
81Drosophila melanogasterMutation(s): 0 
Gene Names: cnnArrCG4832
UniProt
Find proteins for P54623 (Drosophila melanogaster)
Explore P54623 
Go to UniProtKB:  P54623
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP54623
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.02 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 195.99α = 90
b = 36.5β = 102.84
c = 43.78γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
xia2data reduction
xia2data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom10457
Wellcome TrustUnited Kingdom100298

Revision History  (Full details and data files)

  • Version 1.0: 2017-06-28
    Type: Initial release
  • Version 1.1: 2024-05-08
    Changes: Data collection, Database references, Derived calculations