5LHY

PB3 Domain of Human PLK4 (apo)

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.31 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.269 
  • R-Value Observed: 0.271 

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- ...

    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 PLK41, 2, 3, 4, 5, 6, 7, 8, 1,  2,  3,  4,  5,  6,  7,  8,  9,  A,  B,  C,  D,  E,  F,  G,  H,  I,  J,  K,  L,  M,  N,  O,  P,  Q,  R,  S,  T,  U,  V,  W,  X,  Y,  Z,  a,  b,  c,  d,  e,  f,  g,  h,  i,  j,  k,  l,  m,  n,  o,  p,  q,  r,  s,  t,  u,  v,  w,  x,  y
91Homo sapiensMutation(s): 0 
Gene Names: PLK4, SAK, STK18
EC: 2.7.11.21
Find proteins for O00444 (Homo sapiens)
Explore O00444 
Go to UniProtKB:  O00444
NIH Common Fund Data Resources
PHAROS:  O00444
GTEx:  ENSG00000142731
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.31 Å
  • R-Value Free: 0.295 
  • R-Value Work: 0.269 
  • R-Value Observed: 0.271 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 220.35α = 90
b = 220.35β = 90
c = 325.73γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
MOLREPphasing

Structure Validation

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View more in-depth experimental data

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
    Changes: Database references
  • Version 1.2: 2017-03-29
    Changes: Database references
  • Version 1.3: 2017-05-10
    Changes: Database references