5LHZ

PB3 Domain of Human PLK4 in Complex with Coiled-Coil Domain of STIL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.51 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.250 

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:  

  • 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- ...

    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.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase PLK4
A, B, C
91Homo sapiensMutation(s): 0 
Gene Names: PLK4 (SAK, STK18)
EC: 2.7.11.21
Find proteins for O00444 (Homo sapiens)
Go to Gene View: PLK4
Go to UniProtKB:  O00444
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
SCL-interrupting locus protein
D, E, F
28Homo sapiensMutation(s): 0 
Gene Names: STIL (SIL)
Find proteins for Q15468 (Homo sapiens)
Go to Gene View: STIL
Go to UniProtKB:  Q15468
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.51 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.250 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 68.360α = 90.00
b = 68.360β = 90.00
c = 137.390γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
XDSdata reduction
Aimlessdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom100298
Wellcome TrustUnited Kingdom104575

Revision History 

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