4NK7

Crystal Structure of the D. melanogaster Plk4 cryptic polo box (CPB)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.23 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.243 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of the C. elegans ZYG-1 Cryptic Polo Box Suggests a Conserved Mechanism for Centriolar Docking of Plk4 Kinases.

Shimanovskaya, E.Viscardi, V.Lesigang, J.Lettman, M.M.Qiao, R.Svergun, D.I.Round, A.Oegema, K.Dong, G.

(2014) Structure 22: 1090-1104

  • DOI: https://doi.org/10.1016/j.str.2014.05.009
  • Primary Citation of Related Structures:  
    4NK7, 4NKB

  • PubMed Abstract: 

    Plk4 family kinases control centriole assembly. Plk4s target mother centrioles through an interaction between their cryptic polo box (CPB) and acidic regions in the centriolar receptors SPD-2/Cep192 and/or Asterless/Cep152. Here, we report a crystal structure for the CPB of C. elegans ZYG-1, which forms a Z-shaped dimer containing an intermolecular β sheet with an extended basic surface patch. Biochemical and in vivo analysis revealed that electrostatic interactions dock the ZYG-1 CPB basic patch onto the SPD-2-derived acidic region to promote ZYG-1 targeting and new centriole assembly. Analysis of a different crystal form of the Drosophila Plk4 (DmPlk4) CPB suggests that it also forms a Z-shaped dimer. Comparison of the ZYG-1 and DmPlk4 CPBs revealed structural changes in the ZYG-1 CPB that confer selectivity for binding SPD-2 over Asterless-derived acidic regions. Overall, our findings suggest a conserved mechanism for centriolar docking of Plk4 homologs that initiate daughter centriole assembly.


  • Organizational Affiliation

    Max F. Perutz Laboratories, Medical University of Vienna, 1030 Vienna, Austria.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein kinase PLK4223Drosophila melanogasterMutation(s): 0 
Gene Names: CG7186D. melanogaster Plk4 (residues 383-601)SAK
EC: 2.7.11.21
UniProt
Find proteins for O97143 (Drosophila melanogaster)
Explore O97143 
Go to UniProtKB:  O97143
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO97143
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.23 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.240 
  • R-Value Observed: 0.243 
  • Space Group: P 64 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 132.207α = 90
b = 132.207β = 90
c = 134.247γ = 120
Software Package:
Software NamePurpose
DNAdata collection
SOLVEphasing
PHENIXrefinement
XDSdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-08-27
    Type: Initial release
  • Version 1.1: 2023-09-20
    Changes: Data collection, Database references, Refinement description