5LHX

PB3 Domain of Drosophila melanogaster PLK4 (Sak)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.53 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

A key centriole assembly interaction interface between human PLK4 and STIL appears to not be conserved in flies.

Cottee, M.A.Johnson, S.Raff, J.W.Lea, S.M.

(2017) Biol Open 6: 381-389

  • DOI: 10.1242/bio.024661
  • Primary Citation of Related Structures:  
    5LHZ, 5LHY, 5LHX, 5LHW

  • PubMed Abstract: 
  • A small number of proteins form a conserved pathway of centriole duplication. In humans and flies, the binding of PLK4/Sak to STIL/Ana2 initiates daughter centriole assembly. In humans, this interaction is mediated by an interaction between the Polo-Box-3 (PB3) domain of PLK4 and the coiled-coil domain of STIL (HsCCD) ...

    A small number of proteins form a conserved pathway of centriole duplication. In humans and flies, the binding of PLK4/Sak to STIL/Ana2 initiates daughter centriole assembly. In humans, this interaction is mediated by an interaction between the Polo-Box-3 (PB3) domain of PLK4 and the coiled-coil domain of STIL (HsCCD). We showed previously that the Drosophila Ana2 coiled-coil domain (DmCCD) is essential for centriole assembly, but it forms a tight parallel tetramer in vitro that likely precludes an interaction with PB3. Here, we show that the isolated HsCCD and HsPB3 domains form a mixture of homo-multimers in vitro , but these readily dissociate when mixed to form the previously described 1:1 HsCCD:HsPB3 complex. In contrast, although Drosophila PB3 (DmPB3) adopts a canonical polo-box fold, it does not detectably interact with DmCCD in vitro Thus, surprisingly, a key centriole assembly interaction interface appears to differ between humans and flies.


    Organizational Affiliation

    Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, UK jordan.raff@path.ox.ac.uk susan.lea@path.ox.ac.uk.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein kinase PLK4A, B93Drosophila melanogasterMutation(s): 0 
Gene Names: SAKCG7186
EC: 2.7.11.21
UniProt
Find proteins for O97143 (Drosophila melanogaster)
Explore O97143 
Go to UniProtKB:  O97143
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.53 Å
  • R-Value Free: 0.209 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.169 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 35.87α = 90
b = 52.14β = 107.14
c = 42.53γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom100298
Wellcome TrustUnited Kingdom104575

Revision History  (Full details and data files)

  • Version 1.0: 2017-03-01
    Type: Initial release
  • Version 1.1: 2017-03-08
    Changes: Database references
  • Version 1.2: 2017-03-29
    Changes: Database references
  • Version 1.3: 2017-05-10
    Changes: Database references